Lenovo X1 Carbon 5Th Hmm En Sp40M11925 02 User Manual Hardware Maintenance Think Pad (Type 20HR, 20HQ, 20K3, 20K4) Gen Kabylake 20HQ) Laptop (Think Pad)

2017-06-19

User Manual: Lenovo X1 Carbon 5Th Hmm En Sp40M11925 02 Hardware Maintenance Manual - ThinkPad X1 Carbon (Type 20HR, 20HQ, 20K3, 20K4) X1 Carbon 5th Gen - Kabylake (Type 20HR, 20HQ) Laptop (ThinkPad) X1 Carbon 5th Gen - Kabylake (Type 20HR, 20HQ)

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Hardware Maintenance Manual

Machine Types: 20HQ, 20HR, 20K3, and 20K4

Note: Before using this information and the product it supports, be sure to read the general information
under Appendix A “Notices” on page 101.

Third Edition (June 2017)
© Copyright Lenovo 2017.
LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services
Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No.
GS-35F-05925.

Contents
About this manual. . . . . . . . . . .

iii

Chapter 1. Safety information . . . . . . 1
General safety . . . . . . . . . . . . . . .
Electrical safety . . . . . . . . . . . . . .
Safety inspection guide . . . . . . . . . . .
Handling devices that are sensitive to electrostatic
discharge. . . . . . . . . . . . . . . . .
Grounding requirements . . . . . . . . . . .
Safety notices (multilingual translations) . . . . .

Chapter 2. Important service
information . . . . . . . . . . . . . .

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3
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Strategy for replacing FRUs . . . . . . . . .
Strategy for replacing an M.2 solid-state
drive . . . . . . . . . . . . . . . . .
Important notice for replacing a system
board . . . . . . . . . . . . . . . .
How to use error message . . . . . . . .
Strategy for replacing FRUs for CTO, special-bid,
and standard models . . . . . . . . . . . .
Product definition . . . . . . . . . . . .
FRU identification. . . . . . . . . . . .

Chapter 3. General checkout . . . . .

What to do first . . . . . . . . . . .
Checkout guide . . . . . . . . . . .
Diagnosing problems . . . . . . .
Quick test programs. . . . . . . .
UEFI diagnostic program . . . . . .
Bootable diagnostic programs. . . .
Power system checkout . . . . . . . .
Checking the ac power adapter . . .
Checking the battery and operational
charging . . . . . . . . . . . .
Checking the coin-cell battery . . . .

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Chapter 4. Related service
information . . . . . . . . . . . . . .
Recovery information . . . . . . . . . .
Restoring the factory contents with the
Recovery Disc Set for the Windows 7
operating system . . . . . . . . . .
Recovery information for the Windows 7
operating system . . . . . . . . . .
Recovery information for the Windows 10
operating system . . . . . . . . . .
Passwords . . . . . . . . . . . . . .
Power-on password . . . . . . . . .

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Hard disk password . . . . . . . . .
Supervisor password . . . . . . . .
How to remove the power-on password .
How to remove the hard disk password .
Power management . . . . . . . . . .
Screen blank mode (for the Windows 7
operating system only) . . . . . . . .
Sleep mode . . . . . . . . . . . .
Hibernation mode . . . . . . . . .
Symptom-to-FRU index . . . . . . . . .
Numeric error codes . . . . . . . .
Error messages . . . . . . . . . .
Beep errors . . . . . . . . . . . .
LCD-related symptoms . . . . . . .
Intermittent problems . . . . . . . .
Undetermined problems . . . . . . .

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Chapter 5. Special keys . . . . . . . .

Chapter 6. Locations . . . . . . . . .

Computer controls, connectors, and indicators
Front view. . . . . . . . . . . . .
Left-side view . . . . . . . . . . .
Right-side view. . . . . . . . . . .
Rear view . . . . . . . . . . . . .
Bottom view . . . . . . . . . . . .
Status indicators . . . . . . . . . .
Locating FRUs and CRUs . . . . . . . .
Major FRUs . . . . . . . . . . . .
LCD FRUs . . . . . . . . . . . .
Miscellaneous parts and other FRUs . .
Connector and cable guide . . . . . .
Looking up FRU information . . . . . . .

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Chapter 7. FRU replacement
notices . . . . . . . . . . . . . . . .

Common service tools . . . . . . . . . .
Screw notices . . . . . . . . . . . . . .
Retaining serial numbers. . . . . . . . . .
Restoring the serial number of the system
unit . . . . . . . . . . . . . . . .
Retaining the UUID . . . . . . . . . .
Reading or writing the ECA information . .

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Chapter 8. Removing or replacing a
FRU . . . . . . . . . . . . . . . . . .

General guidelines . . . . . . . . . . . . .

Before servicing the computer . . . . . . . .
Removing external devices . . . . . . . .
Disabling the built-in battery . . . . . . .
Removing the micro SIM card . . . . . .
Removing a major FRU . . . . . . . . . . .
1010 Base cover assembly . . . . . . . .
1020 M.2 solid-state drive and thermal rubber
for M.2 solid-state drive . . . . . . . . .
1030 Wireless-LAN card . . . . . . . . .
1040 Wireless-WAN card . . . . . . . . .
1050 Coin-cell battery . . . . . . . . . .
1060 Thermal fan assembly . . . . . . . .
1070 USB cable . . . . . . . . . . . .
1080 Speaker assembly . . . . . . . . .
1090 Built-in battery. . . . . . . . . . .
1100 Wireless-WAN antenna kit or
wireless-WAN antenna filler, and cable holder
for wireless-WAN antenna . . . . . . . .
1110 Wireless-LAN antenna kit and cable
holder for wireless-LAN antenna . . . . . .
1120 WiGig antenna kit and WiGig bracket . .
1130 Trackpad cable . . . . . . . . . .
1140 Trackpad assembly and trackpad
insulation tape . . . . . . . . . . . . .

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1150 NFC card with NFC support bracket .
1160 dc-in support bracket . . . . . . .
1170 micro-SIM-card tray . . . . . . .
1180 SD support bracket . . . . . . . .
1190 System board assembly . . . . . .
1200 Power button card and
power-button-card cable . . . . . . . .
1210 Audio card with audio-card cable . .
1220 LCD unit . . . . . . . . . . . .
1230 Keyboard bezel assembly . . . . .
Removing an LCD FRU . . . . . . . . . .
2010 LCD-bezel assembly, protection plate
assembly, and metal protection plate . . .
2020 Hinges and LCD bottom bezel . . .
2030 LCD panel assembly and LCD cable .
2040 Camera/microphone card, and
camera/LED cable . . . . . . . . . .

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Appendix A. Notices . . . . . . . . .
Electronic emissions notices . . . . . . . . .
Trademarks . . . . . . . . . . . . . . . .

101
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About this manual
This manual contains service and reference information for the following ThinkPad® products.
ThinkPad X1 Carbon

Machine Types: 20HQ, 20HR, 20K3, and 20K4

Use this manual along with the advanced diagnostic tests to troubleshoot problems.
Important: This manual is intended only for trained service technicians who are familiar with ThinkPad
products. Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively.
Before servicing a ThinkPad product, be sure to read all the information under Chapter 1 “Safety information”
on page 1 and Chapter 2 “Important service information” on page 19.

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Hardware Maintenance Manual

Chapter 1. Safety information
This chapter presents following safety information that you must be familiar with before you service a
ThinkPad notebook computer.
• “General safety” on page 1
• “Electrical safety” on page 1
• “Safety inspection guide” on page 2
• “Handling devices that are sensitive to electrostatic discharge” on page 3
• “Grounding requirements” on page 4
• “Safety notices (multilingual translations)” on page 4

General safety
Follow these rules to ensure general safety:
• Observe good housekeeping in the area of the machines during and after maintenance.
• When lifting any heavy object:
1. Make sure that you can stand safely without slipping.
2. Distribute the weight of the object equally between your feet.
3. Use a slow lifting force. Never move suddenly or twist when you attempt to lift.

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4. Lift by standing or by pushing up with your leg muscles; this action removes the strain from the
muscles in your back. Do not attempt to lift any object that weighs more than 16 kg (35 lb) or that
you think is too heavy for you.
Do not perform any action that causes hazards to the customer, or that makes the equipment unsafe.
Before you start the machine, make sure that other service technicians and the customer's personnel are
not in a hazardous position.
Place removed covers and other parts in a safe place, away from all personnel, while you are servicing
the machine.
Keep your toolcase away from walk areas so that other people will not trip over it.
Do not wear loose clothing that can be trapped in the moving parts of a machine. Make sure that your
sleeves are fastened or rolled up above your elbows. If your hair is long, fasten it.
Insert the ends of your necktie or scarf inside clothing or fasten it with a nonconductive clip, about 8
centimeters (3 inches) from the end.
Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your clothing.

Attention: Metal objects are good electrical conductors.
• Wear safety glasses when you are hammering, drilling, soldering, cutting wire, attaching springs, using
solvents, or working in any other conditions that might be hazardous to your eyes.
• After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device
that is worn or defective.
• Reinstall all covers correctly before returning the machine to the customer.
• Fan louvers on the machine help to prevent overheating of internal components. Do not obstruct fan
louvers or cover them with labels or stickers.

Electrical safety
Observe the following rules when working on electrical equipment.
Important: Use only approved tools and test equipment. Some hand tools have handles covered with a soft
material that does not insulate you when working with live electrical currents.Many customers have, near
their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges.
Do not use this type of mat to protect yourself from electrical shock.

• Find the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet. If an electrical
accident occurs, you can then operate the switch or unplug the power cord quickly.
• Do not work alone under hazardous conditions or near equipment that has hazardous voltages.
• Disconnect all power before:
– Performing a mechanical inspection
– Working near power supplies
– Removing or installing main units
• Before you start to work on the machine, unplug the power cord. If you cannot unplug it, ask the customer
to power-off the wall box that supplies power to the machine, and to lock the wall box in the off position.
• If you have to work on a machine that has exposed electrical circuits, observe the following precautions:
– Ensure that another person, familiar with the power-off controls, is near you.
Attention: Another person must be there to switch off the power, if necessary.
– Use only one hand when working with powered-on electrical equipment; keep the other hand in your
pocket or behind your back.

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Attention: An electrical shock can occur only when there is a complete circuit. By observing the above
rule, you may prevent a current from passing through your body.
– When using testers, set the controls correctly and use the approved probe leads and accessories for
that tester.
– Stand on suitable rubber mats (obtained locally, if necessary) to insulate you from grounds such as
metal floor strips and machine frames.
Observe the special safety precautions when you work with very high voltages; Instructions for these
precautions are in the safety sections of maintenance information. Use extreme care when measuring
high voltages.
Regularly inspect and maintain your electrical hand tools for safe operational condition.
Do not use worn or broken tools and testers.
Never assume that power has been disconnected from a circuit. First, check that it has been powered off.
Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors,
nongrounded power extension cables, power surges, and missing safety grounds.
Do not touch live electrical circuits with the reflective surface of a plastic dental mirror. The surface is
conductive; such touching can cause personal injury and machine damage.
Do not service the following parts with the power on when they are removed from their normal operating
places in a machine:
– Power supply units
– Pumps
– Blowers and fans
– Motor generators
– Similar units as listed above
This practice ensures correct grounding of the units.
If an electrical accident occurs:
– Use caution; do not become a victim yourself.
– Switch off power.
– Send another person to get medical aid.

Safety inspection guide
The purpose of this inspection guide is to assist you in identifying potentially unsafe conditions. As each
machine was designed and built, required safety items were installed to protect users and service technicians
from injury. This guide addresses only those items. You should use good judgment to identify potential
safety hazards due to attachment of non-ThinkPad features or options not covered by this inspection guide.
If any unsafe conditions are present, you must determine how serious the apparent hazard could be and
whether you can continue without first correcting the problem.

Hardware Maintenance Manual

Consider these conditions and the safety hazards they present:
• Electrical hazards, especially primary power (primary voltage on the frame can cause serious or fatal
electrical shock)
• Explosive hazards, such as a damaged CRT face or a bulging capacitor
• Mechanical hazards, such as loose or missing hardware
To determine whether there are any potentially unsafe conditions, use the following checklist at the beginning
of every service task. Begin the checks with the power off, and the power cord disconnected.
Checklist:
1. Check exterior covers for damage (loose, broken, or sharp edges).
2. Power off the computer. Disconnect the power cord.
3. Check the power cord for:
a. A third-wire ground connector in good condition. Use a meter to measure third-wire ground
continuity for 0.1 ohm or less between the external ground pin and the frame ground.
b. The power cord should be the authorized type specified for your computer. Go to:
http://www.lenovo.com/serviceparts-lookup
c. Insulation must not be frayed or worn.
4. Check for cracked or bulging batteries.
5. Remove the cover.
6. Check for any obvious non-ThinkPad alterations. Use good judgment as to the safety of any
non-ThinkPad alterations.
7. Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or
other liquids, or signs of fire or smoke damage.
8. Check for worn, frayed, or pinched cables.
9. Check that the power-supply cover fasteners (screws or rivets) have not been removed or tampered with.

Handling devices that are sensitive to electrostatic discharge
Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to
electrostatic discharge (ESD.) ESD damage can occur when there is a difference in charge between objects.
Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the
person handling the part are all at the same charge.
Notes:
1. Use product-specific ESD procedures when they exceed the requirements noted here.
2. Make sure that the ESD protective devices you use have been certified (ISO 9000) as fully effective.
When handling ESD-sensitive parts:
• Keep the parts in protective packages until they are inserted into the product.
• Avoid contact with other people.
• Wear a grounded wrist strap against your skin to eliminate static on your body.
• Prevent the part from touching your clothing. Most clothing is insulative and retains a charge even
when you are wearing a wrist strap.
• Use a grounded work mat to provide a static-free work surface. The mat is especially useful when
handling ESD-sensitive devices.
• Select a grounding system, such as those listed below, to provide protection that meets the specific
service requirement.
Note: The use of a grounding system to guard against ESD damage is desirable but not necessary.
– Attach the ESD ground clip to any frame ground, ground braid, or green-wire ground.

Chapter 1. Safety information

– When working on a double-insulated or battery-operated system, use an ESD common ground or
reference point. You can use coax or connector-outside shells on these systems.
– Use the round ground prong of the ac plug on ac-operated computers.

Grounding requirements
Electrical grounding of the computer is required for operator safety and correct system function. Proper
grounding of the electrical outlet can be verified by a certified electrician.

Safety notices (multilingual translations)
The safety notices in this section are provided in the following languages:
• English
• Arabic
• Brazilian Portuguese
• French
• German
• Hebrew
• Japanese
• Korean
• Spanish
• Traditional Chinese

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Chapter 2. Important service information
This chapter introduces following important service information that applies to all machine types supported
by this manual:
• “Strategy for replacing FRUs” on page 19
– “Strategy for replacing an M.2 solid-state drive” on page 19
– “Important notice for replacing a system board” on page 20
– “How to use error message” on page 20
• “Strategy for replacing FRUs for CTO, special-bid, and standard models” on page 20
– “Product definition” on page 20
– “FRU identification” on page 20
Important:
• Advise customers to contact the Lenovo® Support Web site at http://www.lenovo.com/support to view
the software fixes, download the drivers, and follow the on-screen instructions to install the drivers. For
additional assistance, customers might call the Lenovo Customer Support Center. Telephone numbers for
the Lenovo Support Center are available at:
http://www.lenovo.com/support/phone
• Service training documents for Lenovo authorized service technicians are available at the following Web
site. The disassembly and reassembly videos that show the FRU removal and replacement procedures
are contained in the documents.
http://www.lenovoservicetraining.com

Strategy for replacing FRUs
Before replacing parts:
Ensure that all software fixes, drivers, and UEFI BIOS downloads are installed before replacing any FRUs
listed in this manual.
After a system board is replaced, ensure that the latest UEFI BIOS is loaded to the system board before
completing the service action.
To download software fixes, drivers, and UEFI BIOS, go to http://www.lenovo.com/ThinkPadDrivers and
follow the instructions on the screen.
Use the following strategy to prevent unnecessary expense for replacing and servicing FRUs:
• If you are instructed to replace a FRU but the replacement does not correct the problem, reinstall the
original FRU before you continue.
• Some computers have both a processor board and a system board. If you are instructed to replace either
the processor board or the system board, and replacing one of them does not correct the problem,
reinstall that board, and then replace the other one.
• If an adapter or a device consists of more than one FRU, any of the FRUs may be the cause of the error.
Before replacing the adapter or device, remove the FRUs, one by one, to see if the symptoms change.
Replace only the FRU that changed the symptoms.

Strategy for replacing an M.2 solid-state drive
Always try to run a low-level format before replacing an M.2 solid-state drive (SSD). This will cause all
customer data on the M.2 SSD to be lost. Be sure that the customer has a current backup of the data
before doing this task.

Attention: The drive startup sequence in the computer you are servicing may have been changed. Be
extremely careful during write operations such as copying, saving, or formatting. If you select an incorrect
drive, data or programs can be overwritten.

Important notice for replacing a system board
Some components mounted on a system board are very sensitive. Improper handling of a system board can
damage those components, and may cause a system malfunction.
Attention: When handling a system board:
• Do not drop a system board or apply any excessive force to it.
• Avoid rough handling of any kind.
• Avoid bending a system board and hard pushing to prevent cracking at each BGA (Ball Grid Array) chipset.

How to use error message
Use the error codes displayed on the screen to diagnose failures. If more than one error code is displayed,
begin the diagnosis with the first error code. Whatever causes the first error code may also cause false error
codes. If no error code is displayed, see whether the error symptom is listed in the Symptom-to-FRU
Index for the computer you are servicing.

Strategy for replacing FRUs for CTO, special-bid, and standard models
This topic provides information about the model types and FRU identification.

Product definition
This topic introduces different model types and how to identify each type.
Dynamic configure-to-order (CTO) model
This model provides the ability for a customer to configure a Lenovo solution from a Web site, and have this
configuration sent to fulfillment, where it is built and shipped directly to the customer. The machine label and
eSupport will load these products as the 4-character MT, 4-character model, and 2-character country code.
The model is “CTO1” and the default country code is “WW” (example: 20A7CTO1WW).
Special-bid model
This is a unique configuration that has been negotiated between Lenovo and the customer. A unique machine
type model (MTM) consists of a 4-character MT, a 4-character model, and a numeric 2-character country
code is provided to the customer to place orders (example: 20A7000955). The country code assigned is
numeric and does not designate a specific country or region. The custom model factsheet for the MTM
indicates which country the special bid MTM is set up for. Special-bid offering is not generally announced.
Standard model
Standard models (fixed configuration) are announced and offered to all customers. The MTM portion of the
machine label consists of a 4-character MT, a 4-character model, and an alphabetic 2-character country
code. The country code assigned is alphabetic and represents a designated country or region (example:
20A70009UK).

FRU identification
Use Lenovo eSupport to identify major FRUs, FRU part numbers, and FRU descriptions for a product at
an MT - serial number level. Examples of major FRUs are hard disk drive, system board, and liquid crystal
display (LCD).
To identify the major FRUs for a product, do the following:
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Hardware Maintenance Manual

1. Go to http://support.lenovo.com/ibasepartslookup.
2. Type the Machine Type and Serial Number in the corresponding fields.
3. Click Submit.
eSupport also can be used to view the general FRU list for a product. The FRU list is a general list of
components and does not contain specific model information.
To get the general FRU list for a product, do the following:
1. Go to http://www.lenovo.com/support.
2. Follow the instructions on the screen to select a product.
3. Click the Product & Parts tab.
4. Select System Service Parts to view a general FRU list.

Chapter 2. Important service information

Hardware Maintenance Manual

Chapter 3. General checkout
This chapter introduces following information:
• “What to do first” on page 23
• “Checkout guide” on page 24
– “Diagnosing problems” on page 24
– “Quick test programs” on page 25
– “UEFI diagnostic program” on page 25
– “Bootable diagnostic programs” on page 26
• “Power system checkout” on page 26
Before you go to the checkout guide, be sure to read the following important notes.
Important notes:
• Only certified trained personnel should service the computer.
• Before replacing any FRU, read the entire page on removing and replacing FRUs.
• When you replace FRUs, it is recommended use new nylon-coated screws.
• Be extremely careful during such write operations as copying, saving, or formatting. The sequence
of the drives in the computer that you are servicing might have been altered. If you select an incorrect
drive, data or programs might be overwritten.
• Replace a FRU only with another FRU of the correct model. When you replace a FRU, ensure
that the model of the machine and the FRU part number are correct by referring to the Web site:
http://www.lenovo.com/serviceparts-lookup
• A FRU should not be replaced because of a single, unreproducible failure. Single failures can
occur for various reasons that have nothing to do with a hardware defect, such as cosmic radiation,
electrostatic discharge, or software errors. Consider replacing a FRU only when a problem recurs. If you
suspect that a FRU is defective, clear the error log and run the test again. If the error does not recur, do
not replace the FRU.
• Be careful not to replace a nondefective FRU.

What to do first
When you return a FRU, you must include the following information in the parts exchange form or parts
return form that you attach to it:
1. Name and phone number of service technician
2. Date of service
3. Date on which the machine failed
4. Date of purchase
5. Failure symptoms, error codes appearing on the display, and beep symptoms
6. Procedure index and page number in which the failing FRU was detected
7. Failing FRU name and part number
8. Machine type, model number, and serial number
9. Customer's name and address
Note: During the warranty period, the customer may be responsible for repair costs if the computer damage
was caused by misuse, accident, modification, unsuitable physical or operating environment, or improper
maintenance by the customer. Following is a list of some common items that are not covered under warranty
and some symptoms that might indicate that the system was subjected to stress beyond normal use.

Before checking problems with the computer, determine whether the damage is covered under the warranty
by referring to the following list:
The following are not covered under warranty:
• LCD panel cracked from the application of excessive force or from being dropped
• Scratched (cosmetic) parts
• Distortion, deformation, or discoloration of the cosmetic parts
• Plastic parts, latches, pins, or connectors that have been cracked or broken by excessive force
• Damage caused by liquid spilled into the system
• Damage caused by the improper insertion of a PC card or the installation of an incompatible card
• Improper disc insertion or use of an optical drive
• Fuses blown by attachment of a nonsupported device
• Forgotten computer password (making the computer unusable)
• Sticky keys caused by spilling a liquid onto the keyboard
• Use of an incorrect ac power adapter on laptop products
The following symptoms might indicate damage caused by nonwarranted activities:
• Missing parts might be a symptom of unauthorized service or modification.
• Check for obvious damage to a hard disk drive. If the spindle of a hard disk drive becomes noisy, the hard
disk drive might have been dropped or subject to excessive force.

Checkout guide
Use the following procedures as a guide in identifying and correcting problems with the ThinkPad notebook
computers.
Note: The diagnostic tests are intended to test only ThinkPad products. The use of non-ThinkPad products,
prototype cards, or modified options can lead to false indications of errors and invalid system responses.
1. Identify the failing symptoms in as much detail as possible.
2. Verify the symptoms. Try to re-create the failure by running the diagnostic test or by repeating the
operation.

Diagnosing problems
Many computer problems can be solved without outside assistance. If you experience a problem with your
computer, the first place to start is the troubleshooting information in your computer documentation. If
you suspect a software problem, see the documentation, including readme files and help information
systems, that come with the operating system or program. ThinkPad notebook computers come with a set
of diagnostic programs that you can use to help you identify hardware problems.
Diagnosing problems with Lenovo Solution Center on the Windows 7 operating system
Lenovo Solution Center is preinstalled on your computer and also is available for download at:
http://www.lenovo.com/diags
Notes:
• If you are using another Windows® operating system rather than the Windows 7, you can find the latest
information about diagnostics for your computer at:
http://www.lenovo.com/diagnose
• If you are unable to isolate and repair the problem yourself after running Lenovo Solution Center, save and
print the log files created by the program. You need the log files when you speak to a Lenovo technical
support representative.

Hardware Maintenance Manual

Lenovo Solution Center enables you to troubleshoot and resolve computer problems. It combines diagnostic
tests, system information collection, security status, and support information, along with hints and tips for
optimal system performance.
When you are setting up your computer, the Lenovo Solution Center program prompts you to create recovery
media. You can use the recovery media to restore the storage drive to the factory default settings. For more
information, see “Creating and using recovery media” on page 30.
For additional information, see the Lenovo Solution Center help system.
Diagnosing problems with Lenovo Companion on the Windows 10 operating system
Lenovo Companion is preinstalled on your computer and also is available for download at:
https://shop.lenovo.com/us/en/accessories/software/apps/lenovo-apps/companion/
Note: If you are unable to isolate and repair the problem yourself after running Lenovo Companion, save
and print the log files created by the program. You need the log files when you speak to a Lenovo technical
support representative.
Lenovo Companion supports the hardware scan function. It combines diagnostic tests, system information
collection, security status, and support information, along with hints and tips for optimal system performance.
The troubleshooting information or the diagnostic programs might tell you that you need additional or
updated device drivers or other software. You can get the latest technical information and download device
drivers and updates from the Lenovo Support Web site at:
http://www.lenovo.com/support
For additional information, see the Lenovo Companion help system.

Quick test programs
Lenovo provides quick test programs to troubleshoot and resolve computer problems, especially when the
computer does not have the Lenovo Solution Center program installed.
To download and install a quick test program, go to http://www.lenovo.com/diags, and follow the instructions
on the Web site.
To run a test using quick test program, do the following:
1. Go to the C:\SWTOOLS\ldiag directory.
2. Double-click the gui_lsc_lite.exe file.
3. When the User Account Control window opens, click Yes.
4. Select the device class to be tested.
5. Select the devices to be tested.
6. Select the test to be performed.
7. Follow the instructions on the screen to start the test. When a problem is detected, information
messages are displayed. Refer to the messages to troubleshoot the problem.

UEFI diagnostic program
A UEFI diagnostic program is preinstalled on the computer. It enables you to test internal storage devices,
view system information, and check and recover bad sectors on internal storage devices.

Chapter 3. General checkout

To run the UEFI diagnostic program, do the following:
1. Turn on the computer. If the computer cannot be turned on, go to “Power system checkout” on page 26,
and check the power sources. If an error code is displayed, go to “Symptom-to-FRU index” on page 37
for error code descriptions and troubleshooting hints.
2. When the ThinkPad logo is displayed, repeatedly press and release the F10 key. The main screen of the
UEFI diagnostic program is displayed.
3. Follow the instructions on the screen to use the diagnostic program.

Bootable diagnostic programs
If the computer you are servicing is not installed with the UEFI diagnostic program, you can download a
bootable diagnostic program from the Lenovo Support Web site. The bootable diagnostic programs enable
you to test computer memory and internal storage devices, view system information, and check and recover
the internal storage devices. To use the bootable diagnostic programs, you can create a bootable diagnostic
medium on a USB device or CD.
To create a bootable diagnostic medium, do the following:
1. Go to http://www.lenovo.com/diags.
2. Click Lenovo Bootable Diagnostics.
3. Follow the instructions on the Web site to create a bootable diagnostic medium on a USB device or CD.
To use the diagnostic medium you have created, do one of the following:
• If you have created the bootable diagnostic medium on a USB device, do the following:
1. Attach the USB device to the computer.
2. Turn on the computer. If the computer cannot be turned on, go to “Power system checkout” on page
26, and check the power sources. If an error code is displayed, go to “Symptom-to-FRU index” on
page 37 for error code descriptions and troubleshooting hints.
3. When the ThinkPad logo is displayed, repeatedly press and release the F12 key. When the Boot
Menu window opens, release the F12 key.
4. Use the arrow keys to select USB HDD and then press Enter. The diagnostic program will be
launched automatically.
5. Follow the instructions on the screen to use the diagnostic program.
• If you have created the bootable diagnostic medium on a CD, do the following:
1. Turn on the computer. If the computer cannot be turned on, go to “Power system checkout” on page
26, and check the power sources. If an error code is displayed, go to “Symptom-to-FRU index” on
page 37 for error code descriptions and troubleshooting hints.
2. Insert the CD into the external optical drive.
3. Restart the computer.
4. When the ThinkPad logo is displayed, repeatedly press and release the F12 key. When the Boot
Menu window opens, release the F12 key.
5. Use the arrow keys to select ATAPI CDx (x: 0, 1, ...) and then press Enter. The diagnostic program
will be launched automatically.
6. Follow the instructions on the screen to use the diagnostic program.

Power system checkout
To verify if a battery and an ac power adapter are functional, do the following:
1. Turn off the computer.
2. Connect the ac power adapter.

Hardware Maintenance Manual

3. Turn on the computer. If the computer can be turned on, it means that either the battery or the ac
power adapter is functional.
4. Insert a straightened paper clip into the emergency reset hole to reset the computer. If the computer is
still powered on, it means that the ac power adapter is functional.
5. Turn off the computer.
6. Disconnect the ac power adapter and turn on the computer. If the computer can be turned on, it
means that the battery is functional.
If you suspect a power problem, see the appropriate one of the following power supply checkouts:
• “Checking the ac power adapter” on page 27
• “Checking the battery and operational charging” on page 27
• “Checking the coin-cell battery” on page 28

Checking the ac power adapter
Ensure that you use the ac power adapter that is shipped with the computer to provide enough power
to the computer.
Note: Noise from the ac power adapter does not always indicate a defect.
To check the ac power adapter, do the following:
1. Connect the computer to a power outlet and turn on the computer.
2. Check the adapter status from the following Lenovo programs:
• For Windows 10: Open the Lenovo Settings program and click Power.
• For Windows 7: Open the Power Manager program and click Battery.
If the ac power adapter is working well, adapter information will be displayed on the screen. If a
message is displayed warning that the power supply is not enough, replace the adapter with a proper
one that is supported by the computer. If you do not see any information about the adapter, replace
the adapter with a new one.
If the ac power adapter is working but the computer does not charge during operation, go to “Checking
the battery and operational charging” on page 27.

Checking the battery and operational charging
Checking the battery
This system supports only batteries specially designed for this specific system and manufactured by Lenovo
or an authorized builder. The system does not support unauthorized batteries or batteries designed for other
systems. If an unauthorized battery or a battery designed for another systems is installed, the system will
not charge.
Attention: Lenovo has no responsibility for the performance or safety of unauthorized batteries, and
provides no warranties for failures or damage arising out of their use.
Move your pointer to the battery-status icon in the Windows notification area to check the battery status.
The battery-status icon displays the percentage of battery power remaining and how long you can use
your computer before you must charge the battery.
Checking the operational charging
To check whether the battery charges properly during operation, do the following:
1. Discharge the battery until the remained battery power is less than 50%.

Chapter 3. General checkout

2. Perform operational charging. Click the battery status icon in the Windows notification area to display
detailed battery information. If it indicates that the battery is not charging, replace the battery.
3. Check the battery status again. If the same error still exists, replace the system board.

Checking the coin-cell battery
To check the coin-cell battery, do the following:
1. Disable the built-in battery. See “Disabling the built-in battery” on page 68.
2. Remove the coin-cell battery. See “1190 System board assembly” on page 90.
3. Measure the voltage of the coin-cell battery. See the following illustration.

Wire

Voltage (V dc)

Red

+2.5 to +3.2

Black

Ground

• If the voltage is correct, replace the system board.
• If the voltage is not correct, replace the coin-cell battery.
• If the coin-cell battery discharges quickly after replacement, replace the system board.

Hardware Maintenance Manual

Chapter 4. Related service information
This chapter presents following information:
• “Restoring the factory contents with the Recovery Disc Set for the Windows 7 operating system” on
page 29
• “Recovery information for the Windows 7 operating system” on page 30
• “Recovery information for the Windows 10 operating system” on page 32
• “Passwords” on page 33
• “Power management” on page 35
• “Symptom-to-FRU index” on page 37
Service Web site: When the latest maintenance diskette and the system program service diskette become
available, they will be posted on http://www.lenovo.com/support

Recovery information
This section provides information about recovery solutions. There are various methods to choose from when
considering how to recover in the event of a software- or hardware-related problem. Recovery methods vary
depending on the type of operating system that is installed. Ensure that you follow the correct recovery
procedures.

Restoring the factory contents with the Recovery Disc Set for the
Windows 7 operating system
When the main storage drive is replaced because of a failure, no product recovery program is on the new
drive. In this case, the customer must use the Recovery Disc Set to recover the computer. Order the
Recovery Disc Set and the drive at the same time so that the customer can restore the computer to the
factory default settings by using the Recovery Disc Set after the new drive is installed. For information about
which discs to order, go to:
http://www.lenovo.com/serviceparts-lookup.
Depending on the model, the number of recovery discs included in the Recovery Disc Set differs. To restore
the factory contents by using the product Recovery Disc Set, do the following:
Notes:
• During the recovery process, all data on the drive will be deleted. If possible, copy any important data
or personal files that you want to keep onto removable media or a network drive before you start the
recovery process.
• The recovery process takes one to two hours to complete. The length of time depends on the method you
use. If you use product Recovery Disc Set, the recovery process takes about two hours.
1. Connect an external CD/DVD drive.
2. Make the CD/DVD drive the first startup device in the startup sequence using the following procedure:
a. Open the ThinkPad Setup program and select Startup ➙ Boot.
b. Select the CD/DVD drive as the 1st Boot Device.
3. Insert the bootable recovery disc into the CD/DVD drive.
4. Start the computer from the external CD/DVD drive.
5. When promoted, select your language and click Next.
6. Read the license and accept the terms and conditions. Then follow the instructions on the screen.
7. If the Recovery Disc Set contains a Supplemental Recovery Disc, insert it when prompted and click Yes.

Note: Not all Recovery Disc Sets come with a Supplemental Recovery Disc. If there is a Supplemental
Recovery Disc, it will be clearly marked as such.
8. When all of the data has been copied from the last disc in the set and has been processed, remove
the external CD/DVD drive and restart the computer. Follow the instructions on the screen to finish
the recovery.
Note: The rest of the recovery process is fully automated and no action from you is required. The
computer will restart into the Microsoft® Windows desktop several times and you might experience
periods when no activity is apparent on the screen for several minutes at a time. This is normal.
9. When the recovery process completes, the Welcome to Microsoft Windows screen is displayed. Follow
the instructions on the screen to complete the Windows setup.
10. After you have completed the Windows setup, you might want to restore the original startup sequence.
Start the ThinkPad Setup program and then press F9 to restore the default settings. Press F10 to save
changes and exit the ThinkPad Setup program.
Note: After restoring a drive to the factory default settings, you might need to reinstall some device drivers.

Recovery information for the Windows 7 operating system
This topic introduces the Lenovo recovery solutions on the Windows 7 operating system.

Creating and using recovery media
Recovery media enables you to restore the storage drive to the factory default settings after all other recovery
methods have failed. It is important to create recovery media as early as possible.
Note: The recovery operations you can perform using recovery media vary depending on the operating
system from which the recovery media were created. The recovery media might contain a boot medium and
a data medium. Your Microsoft Windows license permits you to create only one data medium. Ensure that
you store the recovery media in a safe place after you have made them.
If you did not create recovery media as a precautionary measure, you can contact Lenovo Customer Support
Center and purchase a set of recovery media from Lenovo. For a list of the Lenovo Support phone numbers
for your country or region, go to:
http://www.lenovo.com/support/phone
The data on the recovery media can be used only for the following purposes:
• Reinstalling the programs and device drivers on your computer
• Reinstalling the operating system
• Modifying the data files on the hard disk drive using the additional files
Creating recovery media
To create recovery media, you need a set of discs or a USB storage device (with at least 16 GB of storage
capacity). The actual disc number or USB capacity that is required depends on the size of the recovery
image.
Attention: Creating recovery media will delete anything stored on the discs or USB storage device. To avoid
data loss, make a backup copy of all the data that you want to keep.
To create recovery media, click Start ➙ All Programs ➙ Lenovo PC Experience. In the prompted window,
double-click Lenovo Tools ➙ Factory Recovery Disks. Then, follow the instructions on the screen.

Hardware Maintenance Manual

Using recovery media
Attention: During the recovery process, all the files currently on the storage device of your computer will be
deleted and replaced by the factory default settings.
To use the recovery media, do the following:
• If you have created the recovery media with discs, do the following:
1. If your computer does not have an internal optical drive, connect an external optical drive to the
computer.
2. Turn on the computer and repeatedly press F12 until the Boot Menu window opens.
3. In the Boot Menu window, select the optical drive (internal or external) as the first boot device. Then,
insert the discs into the optical drive and press Enter. The recovery process starts.
4. Follow the instructions on the screen to complete the operation.
• If you have created the recovery media with a USB storage device, do the following:
1. Attach the USB storage device to one of the USB connectors on your computer.
2. Turn on the computer and repeatedly press F12 until the Boot Menu window opens.
3. In the Boot Menu window, select the USB storage device as the first boot device and press Enter.
The recovery process starts.
4. Follow the instructions on the screen to complete the operation.
Note: After restoring your computer to the factory default settings, you might have to reinstall the device
drivers for some devices. See “Reinstalling preinstalled programs and device drivers” on page 31.

Reinstalling preinstalled programs and device drivers
Your computer enables you to reinstall preinstalled programs and device drivers.
Reinstalling preinstalled programs
To reinstall programs preinstalled on your computer, do the following:
1. Turn on your computer.
2. Go to C:\swtools.
3. Open the apps folder. The folder contains several subfolders named for various preinstalled programs.
4. Open the subfolder and locate the EXE file.
5. Double-click the EXE file and follow the instructions on the screen to complete the installation.
Reinstalling preinstalled device drivers
Attention: Reinstalling device drivers will change the current configuration of your computer. Reinstall
device drivers only when it is necessary to solve a problem with your computer.
To reinstall a device driver for a factory-installed device, do the following:
1. Turn on your computer.
2. Go to C:\swtools.
3. Open the Drivers folder and locate the subfolder that is named after the factory-installed device in your
computer, such as AUDIO or VIDEO.
4. Open the subfolder for the device.
5. Reinstall the device driver by one of the following methods:
• If the device subfolder contains an EXE file, double-click the EXE file and follow the instructions on
the screen to complete the installation.

Chapter 4. Related service information

• If the device subfolder contains a readme TXT file, the device driver installation information is included
in the readme file. Follow the instructions to complete the installation.
• If the device subfolder contains an INF file, right-click the INF file and select Install. Then follow the
instructions on the screen to complete the installation.
If you need updated device drivers for your computer, download and install them from the Lenovo Support
Web site at:
http://www.lenovo.com/support

Recovery information for the Windows 10 operating system
This topic provides information about the Windows recovery solutions on the Windows 10 operating system.

Resetting your computer
If your computer does not perform well, you might consider resetting your computer. In the resetting process,
you can choose to keep your files or remove them, and then reinstall the Windows operating system.
To reset your computer, do the following:
Note: The items in the graphical user interface (GUI) might change without notice.
1. Open the Start menu, and then click Settings ➙ Update & security ➙ Recovery.
2. In the Reset this PC section, click Get started.
3. Follow the instructions on the screen to reset your computer.

Using advanced startup options
The advanced startup options enable you to do the following:
• Change the firmware settings of the computer
• Change the startup settings of the Windows operating system
• Start the computer from an external device
• Restore the Windows operating system from a system image
To use advanced startup options, do the following:
Note: The items in the graphical user interface (GUI) might change without notice.
1. Open the Start menu, and then click Settings ➙ Update & security ➙ Recovery.
2. In the Advanced startup section, click Restart now ➙ Troubleshoot ➙ Advanced options.
3. Select a startup option you want, and then follow the instructions on the screen.

Recovering your operating system if Windows 10 fails to start
The Windows recovery environment on your computer operates independently from the Windows 10
operating system. It enables you to recover or repair the operating system even if the Windows 10 operating
system fails to start.
After two consecutive failed boot attempts, the Windows recovery environment starts automatically. Then
you can choose repair and recovery options by following the on-screen instructions.
Note: Ensure that your computer is connected to ac power during the recovery process.

Hardware Maintenance Manual

Creating and using a recovery USB drive
You can create a recovery USB drive as a backup for the Windows recovery programs. With the recovery
USB drive, you can troubleshoot and fix the problems even if the preinstalled Windows recovery programs
are damaged.
It is recommended that you create a recovery USB drive as early as possible. If you did not create a recovery
USB drive as a precautionary measure, you can contact Lenovo Customer Support Center and purchase
one from Lenovo. For a list of the Lenovo Support phone numbers for your country or region, go to:
http://www.lenovo.com/support/phone
Creating a recovery USB drive
To create a recovery USB drive, you need a USB drive with at least 16 GB of storage capacity. The actual
USB capacity that is required depends on the size of the recovery image.
Attention: The creation process will delete anything stored on the USB drive. To avoid data loss, make a
backup copy of all the data that you want to keep.
To create a recovery USB drive, do the following:
Note: Ensure that your computer is connected to ac power during the following process.
1. Connect a proper USB drive (at least 16 GB of storage) to the computer.
2. Type recovery in the search box on the taskbar. Then click Create a recovery drive.
3. Click Yes in the User Account Control window to allow the Recovery Media Creator program to start.
4. In the Recovery Drive window, follow the instructions on the screen to create a recovery USB drive.
Using the recovery USB drive
If you cannot start your computer, use the recovery USB drive to recover your computer.
To use a recovery USB drive, do the following:
Note: Ensure that your computer is connected to ac power during the following process.
1. Connect the recovery USB drive to the computer.
2. Turn on or restart the computer. Before the Windows operating system starts, repeatedly press F12. The
Boot Menu window opens.
3. Select the recovery USB drive as the boot device.
4. Select a preferred keyboard layout.
5. Click Troubleshoot to display optional recovery solutions.
6. Select a corresponding recovery solution according to your situation. Then follow the instructions on
the screen to complete the process.

Passwords
As many as three passwords may be needed for any ThinkPad notebook computer: the power-on password,
the hard disk password, and the supervisor password.
If any of these passwords has been set, a prompt for it will be displayed on the screen whenever the
computer is turned on. The computer does not start until the password is entered.
Note: If only a supervisor password is set, the password prompt will not be displayed when the operating
system is started.

Chapter 4. Related service information

Power-on password
A power-on password protects the system from being powered on by an unauthorized person. The
password must be entered before an operating system can be started. For instructions on how to remove
the power-on password, see “How to remove the power-on password” on page 34.

Hard disk password
There are two kinds of hard disk passwords:
• User hard disk password - for the user
• Master hard disk password - for the system administrator, who can use it to get access to the hard disk
even if the user has changed the user hard disk password
Note: There are two modes for the hard disk password: User only and Master + User. The Master + User
mode requires two hard disk passwords; the system administrator enters both in the same operation. The
system administrator then provides the user hard disk password to the system user.
Attention: If the user hard disk password has been forgotten, check whether a master hard disk password
has been set. If it has, it can be used for access to the hard disk drive. If no master hard disk password is
available, neither Lenovo nor Lenovo authorized service technicians provide any services to reset either
the user or the master hard disk password, or to recover data from the hard disk drive. The hard disk drive
can be replaced for a scheduled fee.
For how to remove the hard disk password, see “How to remove the hard disk password” on page 35.

Supervisor password
The supervisor password protects the system information stored in the ThinkPad Setup program. It provides
the following security features:
• If only a supervisor password is set, a password prompt is displayed when you try to start the ThinkPad
Setup program. Unauthorized users cannot change most of the system configuration options in the
ThinkPad Setup program without the password.
• The system administrator can use the supervisor password to access a computer even if the user of that
computer has set a power-on password. The supervisor password overrides the power-on password.
• The system administrator can set the same supervisor password on many ThinkPad notebook computers
to make administration easier.
Attention: If the supervisor password has been forgotten and cannot be made available to the service
technician, there is no service procedure to reset the password. The system board must be replaced for
a scheduled fee.

How to remove the power-on password
To remove a power-on password, do the following:
If no supervisor password has been set, do the following to remove the power-on password:
1. Turn off the computer and disconnect ac power.
2. Disable the built-in battery. See “Disabling the built-in battery” on page 68.
3. Remove the base cover assembly. See “1010 Base cover assembly” on page 69.
4. Remove the internal battery pack. See “1090 Built-in battery” on page 77.
5. Remove the coin-cell battery. See “1050 Coin-cell battery” on page 73.
6. Reinstall the coin-cell battery.
7. Reinstall the internal battery pack.

Hardware Maintenance Manual

8. Reinstall the base cover assembly.
9. Reconnect ac power.
10. Turn on the computer and wait until the POST ends. After the POST ends, the password prompt does
not appear. The power-on password has been removed.
If a supervisor password has been set and is known to the service technician, do the following to remove
the power-on password:
1. Turn on the computer.
2. When the ThinkPad logo is displayed, immediately press F1.
3. Type the supervisor password to enter the ThinkPad Setup program.
4. Select Security.
5. Select Password.
6. Select Power-On Password.
7. Type the current supervisor password in the Enter Current Password field. Then leave the Enter
New Password field blank, and press Enter twice.
8. In the Changes have been saved window, press Enter.
9. Press F10 to save changes and exit the ThinkPad Setup program. The power-on password has
been removed.

How to remove the hard disk password
Attention: If User only mode is selected and the user hard disk password has been forgotten and cannot be
made available to the service technician, neither Lenovo nor Lenovo authorized service technicians provide
any services to reset the user hard disk passwords, or to recover data from the hard disk drive. To put the
system back to operational status, the only Lenovo and Lenovo-authorized service solution would be to
replace the hard disk drive (HDD) or SSD with a scheduled fee.
To remove a user hard disk password that has been forgotten, when the supervisor password and master
hard disk password are known, do the following:
1. Turn on the computer.
2. When the ThinkPad logo comes up, immediately press F1 to enter the ThinkPad Setup program. When
the power-on password icon is displayed on the screen, enter either the power-on password or the
supervisor password.
3. When the user hard disk password icon is displayed on the screen, press F1. The master hard disk
password icon is displayed.
4. Enter the master hard disk password to enter the ThinkPad Setup program.
5. Select Security.
6. Select Password.
7. Select Hard-disk x password, where x is the letter of the hard disk drive. A pop-up window opens.
8. Select Master hard disk password.
9. Type the current master hard disk password in the Enter Current Password field. Then leave the Enter
New Password field blank, and press Enter twice.
10. Press F10 to save changes and exit the ThinkPad Setup program. The user hard disk password and the
master hard disk password have been removed.

Power management
To reduce power consumption, the computer has three power management modes: screen blank, sleep,
and hibernation.

Chapter 4. Related service information

Screen blank mode (for the Windows 7 operating system only)
If the time set on the “Turn off monitor” timer in the operating system expires, the LCD backlight turns off.
To put the computer into screen blank mode, do the following:
1. Right-click the battery gauge in the task bar.
2. Select Power off display.
To end screen blank mode and resume normal operation, press any key.

Sleep mode
When the computer enters sleep mode, the following events occur in addition to what occurs in screen
blank mode:
• The LCD is powered off.
• The storage drive is powered off.
• The microprocessor stops.
To enter sleep mode, press Fn+4 or do the following:
• For Windows 7: Open the Start menu, then click the arrow next to the Shut down button. Click Sleep
from the menu displayed.
• For Windows 10: Open the Start menu, click

Power, and then click Sleep.

In certain circumstances, the computer goes into sleep mode automatically:
• After a period of inactivity specified in power plan settings
• When the battery power is low
To resume the computer from sleep mode, press the power button.
Also, in either of the following events, the computer automatically returns from sleep mode and resumes
operation:
• The ring indicator (RI) is signaled by a serial device or a PC Card device.
• The time set on the resume timer elapses.
Note: The computer does not accept any input immediately after it enters sleep mode. Wait a few
seconds before taking any action to reenter operation mode.

Hibernation mode
In hibernation mode, the following occurs:
• The system status, RAM, VRAM, and setup data are stored on the hard disk.
• The system is powered off.
Note: If the computer enters the hibernation mode while it is docked to the docking station, do not undock it
before resuming normal operation. If you do undock it and then try to resume normal operation, you will get
an error message, and you will have to restart the system.
If you have defined one of the following actions as the event that causes the system to go into hibernation
mode, perform that action.
• Closing the lid.
• Pressing the power button.

Hardware Maintenance Manual

Also, the computer goes into hibernation mode automatically after a period of inactivity specified in power
plan settings.
When the power is turned on, the computer returns from hibernation mode and resumes operation. The
hibernation file in the boot record on the hard disk drive is read, and system status is restored from the
hard disk drive.

Symptom-to-FRU index
This section contains following information:
• “Numeric error codes” on page 37
• “Error messages” on page 38
• “Beep errors” on page 38
• “LCD-related symptoms” on page 40
• “Intermittent problems” on page 40
• “Undetermined problems” on page 40
The symptom-to-FRU index in this section lists symptoms and errors and their possible causes. The most
likely cause is listed first, in boldface type.
Note: Do the FRU replacement or other actions in the sequence shown in the column headed “FRU or
action, in sequence.” If replacing a FRU does not solve the problem, put the original part back in the
computer. Do not replace a nondefective FRU.
This index can also help you determine, during regular servicing, what FRUs are likely to need to be
replaced next.
A numeric error is displayed for each error detected in POST or system operation. In the displays, n can
be any number.
If no numeric code is displayed, check the narrative descriptions of symptoms. If the symptom is not
described there, go to “Intermittent problems” on page 40.
Note: For a device not supported by diagnostic codes in the ThinkPad notebook computers, see the
manual for that device.

Numeric error codes
Table 1. Numeric error codes
Symptom or error
0177
Bad SVP data, stop POST task—The checksum of the
supervisor password in the EEPROM is not correct.
0183
Bad CRC of Security Settings in EFI Variable. Enter the
ThinkPad Setup program.

FRU or action, in sequence
System board

1. Run the ThinkPad Setup program, and then save
current setting by pressing F10.
2. System board

0187
EAIA data access error—The access to EEPROM is failed.

System board

0188
Invalid RFID Serialization Information Area.

System board

0189
Invalid RFID configuration information area—The
EEPROM checksum is not correct.

System board

Chapter 4. Related service information

Table 1. Numeric error codes (continued)
Symptom or error

FRU or action, in sequence

0190
Critical low-battery error

1. Charge the battery.
2. Battery

0191
System Security—Invalid Remote Change requested.

1. Run the ThinkPad Setup program, and then save
current setting by pressing F10.
2. System board

0199
System Security— Security password retry count
exceeded.

1. Run the ThinkPad Setup program, and then save
the current setting by pressing F10.
2. System board

0270
Real Time Clock Error— System Real Time Clock is not
functional.

Have the computer serviced.

0271
Check Date and Time settings— Neither the date nor the
time is set in the computer.

Set the date and time, using ThinkPad Setup.

1802
Unauthorized network card is plugged in—Turn off and
remove the network card.
1820
More than one external fingerprint reader is attached.
Power off and remove all but the reader that you set up
within your main operating system.

1. Remove wireless network card.
2. System board
Remove all but the reader that you set up for the
authentication.

2101
Detection error on SSD1 (M.2)

1. Reseat the M.2 solid-state drive.
2. M.2 solid-state drive
3. System board

2111
Read error on SSD1 (M.2)

1. Reseat the M.2 solid-state drive.
2. M.2 solid-state drive
3. System board

2200
Machine Type and Serial Number are invalid.

System board

2201
Machine UUID is invalid

System board

Error messages
Table 2. Error messages
Symptom or error
Fan error

FRU or action, in sequence
1. Fan
2. Thermal grease
3. System board

Thermal sensing error

System board

Bottom cover tamper detection error

System board

Beep errors
Lenovo SmartBeep technology enables you to decode beep errors with your smartphone when a black
screen occurs with beeps from your computer. To decode the beep error with Lenovo SmartBeep
technology, do the following:
1. Go to http://support.lenovo.com/smartbeep or scan the following QR Code.

Hardware Maintenance Manual

2. Download the proper diagnostic app and install it on your smartphone.
3. Run the diagnostic app and place the smartphone near the computer.
4. Press the Fn key on your computer to emit the beep again. The diagnostic app decodes the beep error
and shows possible solutions on the smartphone.
The following section describes some beep errors and the corresponding solutions.
Note: Do not attempt to service a product yourself unless instructed to do so by the Customer Support
Center or product documentation. Only use a Lenovo-authorized service provider to repair your product.
Error codes
0001: Reset error (platform reset not de-asserted)

Solutions
1. Remove all power resources: the ac power adapter,
and the coin-cell battery (service provider only).
Reset the computer by inserting a straightened
paper clip into the emergency-reset hole. Wait for
one minute. Then reconnect all power resources.
2. Replace the system board (service provider only).

0002: Internal bus error

Replace the system board (service provider only).

0281: General embedded controller error

Replace the system board (service provider only).

0282: Memory module error

1. Reinstall or replace the memory module (service
provider only).
2. Replace the system board (service provider only).

0283: PCI resource error

1. Remove PCIe devices (the M.2 card, PCIe card,
and so on) (service provider only).
2. Replace the system board (service provider only).

0284: TCG-compliant functionality-related error (might be
the BIOS code validation failure)

Replace the system board (service provider only).

0285: TCG-compliant functionality-related error (might be
the TPM initialization failure)

Replace the system board (service provider only).

0286: Integrated graphics error

Replace the system board (service provider only).

0287: Discrete graphics error

1. Reinstall or replace the discrete graphics card
(service provider only).
2. Replace the system board (service provider only).

0288: Computer display error

1. Reconnect the display cable on both the system
board side and the computer display side (service
provider only).
2. Replace the system board (service provider only).

Chapter 4. Related service information

LCD-related symptoms
Important: The TFT LCD for the notebook computer contains many thin-film transistors (TFTs). The
presence of a small number of dots that are missing, discolored, or always lighted is characteristic of TFT
LCD technology, but excessive pixel problems can cause viewing concerns.If the LCD you are servicing has
two or less visible defective pixels, it should not be considered faulty. However, if the LCD has three or more
visible defective pixels, it will be deemed as defective by Lenovo and it should be replaced.
Notes:
• This policy applies to all ThinkPad notebooks purchased on 1 January, 2008 or later.
• Lenovo will not provide warranty replacement if the LCD is within specifications because we cannot
guarantee that any replacement LCD will have zero pixel defects.
• One pixel consists of R, G, B sub-pixels.
Table 3. LCD-related symptoms
Symptom or error

FRU or action, in sequence
Replace the system board.

No beep, power-on indicator on, and a blank LCD during
POST.
•
•
•
•

LCD backlight not working.
LCD too dark.
LCD brightness cannot be adjusted.
LCD contrast cannot be adjusted.

1. Reseat the LCD connectors.
2. Replace the LCD assembly.
3. Replace the system board.

•
•
•
•

LCD screen unreadable.
Characters missing pixels.
Screen abnormal.
Wrong color displayed.

1.
2.
3.
4.

Horizontal or vertical lines displayed on LCD.

See important note for “LCD-related symptoms.”
Reseat the LCD connectors.
Replace the LCD assembly.
Replace the system board.
Replace the LCD assembly.

Intermittent problems
Intermittent system hang problems can be due to a variety of causes that have nothing to do with a hardware
defect, such as cosmic radiation, electrostatic discharge, or software errors. FRU replacement should be
considered only when a problem recurs.
When analyzing an intermittent problem, do the following:
1. Run the diagnostic test for the system board in loop mode at least 10 times.
2. If no error is detected, do not replace any FRUs.
3. If any error is detected, replace the FRU shown by the FRU code. Rerun the test to verify that no
more errors exist.

Undetermined problems
If the diagnostic tests did not identify the adapter or device that has failed, if wrong devices are installed,
or if the system simply is not operating, follow these procedures to isolate the failing FRU (do not isolate
FRUs that have no defects).
Verify that all attached devices are supported by the computer.
Verify that the power supply being used at the time of the failure is operating correctly. See “Power system
checkout” on page 26.
1. Turn off the computer.
2. Visually check each FRU for damage. Replace any damaged FRU.
3. Remove or disconnect all of the following devices:
40

Hardware Maintenance Manual

4.
5.
6.
7.

a. Non-ThinkPad devices
b. Printer, mouse, and other external devices
c. External diskette drive or optical drive
d. Wireless cards
Turn on the computer.
Determine whether the problem has been solved.
If the problem does not recur, reconnect the removed devices one at a time until you find the failing FRU.
If the problem remains, replace the following FRUs one at a time (do not replace a nondefective FRU):
a. System board
b. LCD assembly

Chapter 4. Related service information

Hardware Maintenance Manual

Chapter 5. Special keys
Your computer has several special keys to help you work more easily and effectively.

Windows logo key

Press the Windows logo key to open the Start menu. For information about using the Windows logo key with
other keys, see the help information system of the Windows operating system.
2

Fn key and function keys

You can configure the Fn key and function keys in the Keyboard Properties window by doing the following:
1. Go to Control Panel, and then change the view of Control Panel from Category to Large icons or Small
icons.
2. Click Keyboard. In the Keyboard Properties window, click the Fn and function keys tab.
3. Select the options of your preference.

•

+
Switch the key function between the standard F1–F12 function and the special function
printed as an icon on each key. When the Fn Lock indicator is off, you can use the default function. You
can change the default function in the Keyboard Properties window.

•

Mute or unmute the speakers. When the speakers are muted, the indicator on the key is on.
If you mute the sound and turn off your computer, the sound will remain muted when you turn on your
computer. To turn on the sound, press

•

Decrease the speaker volume.

•

Increase the speaker volume.

•

Mute or unmute the microphones. When the microphones are muted, the indicator on the key is on.

•

Darken the computer display.

•

Brighten the computer display.

•

Manage external displays.

•

Enable or disable the built-in wireless features.

•

– For Windows 7: Open Control Panel.
– For Windows 10: Open the Settings window.
•

Enable or disable the built-in Bluetooth features.

•

Open a keyboard setting page.

•

Invoke the function defined by yourself. If no function is defined, the following default function works:
– For Windows 7: Open the search box.
– For Windows 10: Open the Cortana personal assistant.
To define or change the function, do the following:
– For Windows 7:
1. Open Control Panel, and then change the view of Control Panel from Category to Large icons
or Small icons.
2. Click Lenovo - Keyboard Manager. In the Keyboard Manager window, click the USER-DEFINED
KEY tab.
3. Follow the instructions on the screen to complete the setting.
On this setting page, you can also define different functions for the key combinations with F12, such
as Shift+F12, Alt+F12, or Ctrl+F12.
– For Windows 10:
1. Open the Lenovo Settings program.
2. Click the input icon

3. Locate the KEYBOARD: USER-DEFINED KEY section and follow the instructions on the screen
to complete the setting.
On this setting page, you can also define different functions for the key combinations with F12, such
as Shift+F12, Alt+F12, or Ctrl+F12.
Key combinations
• Fn+B: This key combination has the same function as the Break key on a conventional external keyboard.
• Fn+K: This key combination has the same function as the ScrLK or Scroll Lock key on a conventional
external keyboard.
• Fn+P: This key combination has the same function as the Pause key on a conventional external keyboard.
• Fn+S: This key combination has the same function as the SysRq key on a conventional external keyboard.
• Fn+4: Press Fn+4 to put the computer into sleep mode. To wake up the computer, press any key or
the power button.
• Fn+PrtSc: Open the Snipping Tool program.
• Fn+Spacebar: Press Fn+Spacebar to switch between the different keyboard backlight status (off, low, or
high).

Hardware Maintenance Manual

Chapter 6. Locations
This chapter introduces the locations of the hardware components on your computer.

Computer controls, connectors, and indicators
This section introduces hardware features of the computer.

Front view

1 Microphones

2 Infrared camera (available on some models)

3 Conventional camera (available on some models)

4 Power button

5 Fingerprint reader

6 TrackPoint® buttons

7 Trackpad

8 NFC mark (available on some models)

9 TrackPoint pointing stick

Left-side view

1 USB-C connectors (Thunderbolt™ 3 compatible) /
power connectors

2 USB 3.0 connector

3 HDMI™ connector

4 Mini Ethernet connector

Right-side view

1 Audio connector

2 Fan louvers

3 Always On USB 3.0 connector

4 Security-lock slot

Rear view

1 Micro-SIM-card slot

Hardware Maintenance Manual

2 microSD card slot

Bottom view

1 Emergency-reset hole

2 Speakers

3 Fan louvers

Status indicators
This topic provides information about locating and identifying the various status indicators on your computer.

Chapter 6. Locations

Note: Depending on the model, your computer might look different from the following illustrations.

Es c
FnLoc k

CapsLock

Indicator

Meaning

1 Caps Lock indicator

When this indicator is on, you can type uppercase letters
by directly pressing the letter keys.

2 Fn Lock indicator

This indicator shows the status of Fn Lock function. For
more information, see Chapter 5 “Special keys” on page
43.

3 Speaker-mute indicator

When this indicator is on, the speakers are muted.

4 Microphone-mute indicator

When this indicator is on, the microphones are muted.

5 Camera status indicator

When this indicator is on, the camera is in use.

Hardware Maintenance Manual

6 8 System status indicators

The indicator in the ThinkPad logo on the computer lid
and the indicator in the power button show the system
status of your computer.
• Blinks for three times: The computer is initially
connected to power.
• On: The computer is on (in normal mode).
• Off: The computer is off or in hibernation mode.
• Blinks quickly: The computer is entering sleep or
hibernation mode.
• Blinks slowly: The computer is in sleep mode.

7 Fingerprint reader indicator

This indicator shows the status of fingerprint reader.
• Off: The fingerprint reader is not ready for tapping.
• Solid green: The fingerprint reader is ready for tapping.
• Amber, blinking: The fingerprint cannot be
authenticated.

9 ac power status indicator

This indicator shows the ac power and battery power
status of the computer.
• Green: connected to ac power (battery power
80%–100%)
• Yellow: connected to ac power (battery power
1%–80%)
• Off: not connected to ac power

Locating FRUs and CRUs
This topic introduces the following service parts:
• “Major FRUs” on page 50
• “LCD FRUs” on page 53
• “Miscellaneous parts and other FRUs” on page 55
Notes:
• FRUs refer to parts that must be installed or replaced only by trained service technicians. If customers
choose to replace the FRUs by themselves, the product warranty might be affected.
• Each FRU is available for all types or models, unless otherwise specified.
• CRU statement for customers:
You can resolve some problems with your product with a replacement part you can install yourself, called
a “Customer Replaceable Unit” or “CRU.” Some CRUs are designated as self-service CRUs and others
are designated as optional-service CRUs. Installation of self-service CRUs is your responsibility. For
optional-service CRUs, you can either install the CRU yourself or you can request that a Service Provider
install the CRU according to the warranty service for your product. If you intend on installing the CRU,
Lenovo will ship the CRU to you. CRU information and replacement instructions are shipped with your
product and are available from Lenovo at any time upon request. You can find a list of CRUs for your
product in this Hardware Maintenance Manual. An electronic version of this manual can be found at
http://www.lenovo.com/support. Click Guides & Manuals and then follow the on-screen instructions
to find the manual for your product. You might be required to return the defective part that is replaced
by the CRU. When return is required: (1) return instructions, a prepaid shipping label, and a container
will be included with the replacement CRU; and (2) you might be charged for the replacement CRU if
Lenovo does not receive the defective CRU within thirty (30) days of your receipt of the replacement CRU.
See your Lenovo Limited Warranty documentation for full details.
ThinkPad computers contain the following types of CRUs:

Chapter 6. Locations

– Self-service CRUs: Refer to parts that can be installed or replaced easily by customer themselves or
by trained service technicians at an additional cost.
– Optional-service CRUs: Refer to parts that can be installed or replaced by customers with a greater
skill level. Trained service technicians can also provide service to install or replace the parts under the
type of warranty designated for the customer’s machine.

Major FRUs

31
30
2
29
3
28
27

4
5

25
24

8
9
10

11
12

13
21

14
15
16

17
18
19

20
d
c

a
b

Hardware Maintenance Manual

Table 4. Major FRUs and CRUs
No.

FRU description

Self-service CRU

Optional-service CRU

LCD unit

Keyboard bezel assembly

Power button card

Power-button-card cable

SD support bracket

USB cable

Cable holder for wireless local area network (LAN) antenna

Cable holder for wireless wide area network (WAN)
antenna*

Audio card with audio-card cable

Wireless Gigabit (WiGig®) bracket*

WiGig antenna kit*

Wireless-LAN antenna kit

Wireless-WAN antenna

kit*

Wireless-WAN antenna

filler*

Near field communication (NFC) card with NFC support
bracket*

Thermal fan assembly

Speaker assembly

Built-in battery

micro-SIM-card tray

Yes

Base cover assembly

Yes

Trackpad cable

Coin-cell battery

Thermal rubber for M.2 solid-state drive

M.2 solid-state drive

Yes

Wireless-WAN

card*

Yes

Wireless-LAN card

Yes

System board assembly

dc-in support bracket

Trackpad assembly

Trackpad insulation tape

TrackPoint pointing stick

Yes

Lenovo factory recovery USB key*

Yes

Lenovo recovery disc set*

Yes

Power cord

Yes

ac power adapter

Yes

Miscellaneous parts kits

Chapter 6. Locations

Available on some models

Note: The Lenovo factory recovery USB key a and the Lenovo recovery disc set b are used to restore the
Microsoft Windows operating system. They might not come with the computer, and a user might order them
from http://www.lenovo.com/lenovorecovery, though additional shipping and handling fees might apply.

Hardware Maintenance Manual

LCD FRUs

Table 5. LCD FRUs
No.

FRU descriptions

Self-service
CRU

Optional-service
CRU

LCD-bezel assembly

Protection plate assembly

Chapter 6. Locations

Table 5. LCD FRUs (continued)
No.

FRU descriptions

Self-service
CRU

Optional-service
CRU

Metal protection plate

LCD panel assembly

LCD cable

Camera/microphone card (available on some models)

Hinges

Camera/LED cable

LCD bottom bezel

LCD rear cover assembly

Hardware Maintenance Manual

Miscellaneous parts and other FRUs
FRU descriptions

Self-service CRU

Optional-service CRU

Screw and tape kit
• M1.2 x L1.4, flat head, silver(78)
• M2.0 x L1.8, thin head, silver, for trackpad (4)
• M2.0 x L2.2, large flat head, black (9)
• M2.0 x L3.0, silver(12)
• M2.0 x L5.0, black (10)
• M2.5 x L2.2, huge flat head, black, for hinge (4)
• M2.5 x L4.0, flat head, black, for hinge (6)
• Tape (5)

Miscellaneous kit
• M.2 solid-state drive thermal rubber (1)
• Microphone rubber on camera card (1)
• NFC bracket (1)

Label kit

Connector and cable guide
This section provides information to help Lenovo authorized service technicians identify connectors and
cables for replacement purpose. To view each FRU and the exploded illustration of the computer, see “Major
FRUs” on page 50 and “LCD FRUs” on page 53.
Note: Depending on the model, some connectors or cables might not be available.
System board connectors and cables
1 2 3

8
9

11
10

16
17
18

Chapter 6. Locations

No.

Connector/feature

Internal cable required

Cable connection

USB cable connector (internal)

USB cable

The Always On USB 3.0 connector
comes with a cable. Connect the
cable to this connector.

Power button connector (internal)

Power-button-card cable

Connect one end to the power
button card and the other end to
this connector.

Camera/LED connector (internal)

Camera/LED cable

See “Camera/microphone card
connector and cable” on page 57

Thermal fan connector (internal)

Thermal fan assembly cable

The thermal fan assembly comes
with a cable. Connect the cable to
this connector.

M.2 solid-state drive slot (internal)

Insert an M.2 solid-state drive
directly into this slot.

microSD card slot (external)

Insert a microSD card into this slot.

LCD cable

Connect one end to the LCD
panel and the other end to this
connector.

Embeded
(internal)

Wireless-LAN card slot (internal)

Insert the wireless-LAN card into
this slot.

Wireless-WAN card slot (internal)

Insert the wireless-WAN card into
this slot.

Coin-cell battery connector
(internal)

Coin-cell battery cable

The coin-cell battery comes with a
cable. Connect the cable to this
connector.

Keyboard connector (internal)

Keyboard cable

The keyboard bezel assembly
comes with a keyboard cable.
Connect the cable to this
connector.

TrackPoint pointing stick connector
(internal)

TrackPoint pointing stick cable

The keyboard bezel assembly
comes with a TrackPoint pointing
stick cable. Connect the cable to
this connector.

Built-in battery connector (internal)

Connect the built-in battery
directly to this connector.

Trackpad connector (internal)

Trackpad cable

See “Trackpad connector and
trackpad cable” on page 59

Audio card connector (internal)

Connect the audio card to the
system board directly.

Mini Ethernet connector (external)

Connect the computer to a LAN
through this connector by using an
Ethernet extension adapter.

HDMI connector (external)

Connect a compatible digital audio
device or video monitor to this
connector.

USB 3.0 connector (external)

Connect USB-compatible devices
to this connector.

DisplayPort®

connector

Hardware Maintenance Manual

No.

Connector/feature

Internal cable required

Cable connection

USB-C connectors (Thunderbolt
3 compatible) / power connectors
(external)

Connect USB-C compatible
devices or a USB-C power adapter
to these connectors.

Micro-SIM-card slot (external)

If your computer supports the
wireless WAN feature, insert
a micro SIM card into this
slot to establish wireless WAN
connections.

Audio card connectors and cables
1
2
3

No.

Connector/feature

Internal cable required

Cable connection

Speaker assembly connector
(internal)

Speaker assembly cable

The speaker assembly comes with
a cable. Connect the cable to this
connector.

Proximity sensor connector
(internal)

Wireless-WAN antenna kit

Connect the orange cable of the
antenna kit to the main connector
and the blue cable of the antenna
kit to the auxiliary connector on the
wireless-WAN card. Then, connect
the black cable of the antenna kit
to this connector.

Audio connector (external)

Connect headphones or a headset
with a 3.5-mm (0.14-inch), 4-pole
plug to this connector.

Camera/microphone card connector and cable
1

a
b

Chapter 6. Locations

No.

Connector (location)

Internal cable required

Cable connection

Camera/microphone card
connector (internal)

Camera/LED cable

Connect the end c of the cable
to the camera/LED connector on
the system board, and connect the
end b of the cable to the LCD rear
cover. Then, connect the end a of
the cable to this connector.

Keyboard bezel assembly connector and cable

No.

Connector (location)

Internal cable required

Cable connection

Fingerprint reader card connector
(internal)

Trackpad cable

See “Trackpad connector and
trackpad cable” on page 59

LCD cable
a

No.

Connector (location)

Internal cable required

Cable connection

LCD cable connector (internal)

LCD cable

Connect this end to the embeded
DisplayPort connector on the
system board.

LCD cable connector (internal)

LCD cable

Connect this end to the LCD
connector on the LCD panel.

NFC card connectors and cables
1

No.

Connector (location)

Internal cable required

Cable connection

NFC card connector (internal)

Trackpad cable

See “Trackpad connector and
trackpad cable” on page 59

NFC antenna connector (internal)

NFC antenna kit

The trackpad comes with an NFC
antenna kit. Connect the antenna
to this connector.

Hardware Maintenance Manual

Power button card connector and cable
1

No.

Connector (location)

Internal cable required

Cable connection

Power-button-card connector
(internal)

Power-button-card cable

Connect the end a of the cable to
the power button card connector
on the system board and the end
b to this connector.

Trackpad connector and trackpad cable
1

No.

Connector (location)

Internal cable required

Cable connection

Trackpad connector (internal)

Trackpad cable

Connect the end a of the cable
to the trackpad connector on the
system board, and the end b
to the NFC card connector on
the NFC card. Then connect the
end d to the fingerprint reader
card connector on the fingerprint
reader card, and the end c to this
connector.

NFC antenna connector (internal)

NFC antenna kit

The trackpad comes with an NFC
antenna kit. Connect the antenna
to this connector.

USB cable
1

Chapter 6. Locations

No.

Connector (location)

Internal cable required

Cable connection

Always On USB 3.0 connector
(external)

Connect USB-compatible devices
to this connector.

USB cable connector (internal)

USB cable

Connect this end to the USB cable
connector on the system board.

Wireless-WAN card connectors and cables

No.

Connector (location)

Internal cable required

Cable connection

Wireless-WAN antenna connector
(internal)

Wireless-WAN antenna kit

Connect one end of the
wireless-WAN orange antenna to
the C-cover and the other end to
this connector labeled MAIN.

Wireless-WAN antenna connector
(internal)

Wireless-WAN antenna kit

Connect one end of the
wireless-WAN blue antenna
to the C-cover and the other end
to this connector labeled AUX.

Wireless-LAN card connectors and cables
1

Hardware Maintenance Manual

No.

Connector (location)

Internal cable required

Cable connection

WiGig antenna connector (internal)

WiGig antenna kit

Connect one end of the WiGig
white antenna to the C-cover and
the other end to this connector
labeled IFCON.

Wireless-LAN antenna connector
(internal)

Wireless-LAN antenna kit

Connect one end of the
wireless-LAN gray antenna to
the C-cover and the other end to
this connector labeled MAIN.

Wireless-LAN antenna connector
(internal)

Wireless-LAN antenna kit

Connect one end of the
wireless-LAN black antenna
to the C-cover and the other end
to this connector labeled AUX.

Looking up FRU information
For detailed FRU information, including part numbers, descriptions, and substitution part numbers, go to
http://www.lenovo.com/serviceparts-lookup.

Chapter 6. Locations

Hardware Maintenance Manual

Chapter 7. FRU replacement notices
This chapter presents notices related to removing and replacing parts. Read this chapter carefully before
replacing any FRU.
CRU statement for customers:
You can resolve some problems with your product with a replacement part you can install yourself, called
a “Customer Replaceable Unit” or “CRU.” Some CRUs are designated as self-service CRUs and others
are designated as optional-service CRUs. Installation of self-service CRUs is your responsibility. For
optional-service CRUs, you can either install the CRU yourself or you can request that a Service Provider
install the CRU according to the warranty service for your product. If you intend on installing the CRU,
Lenovo will ship the CRU to you. CRU information and replacement instructions are shipped with your
product and are available from Lenovo at any time upon request. You can find a list of CRUs for your
product in this Hardware Maintenance Manual. An electronic version of this manual can be found at
http://www.lenovo.com/support. Click Guides & Manuals and then follow the on-screen instructions to find
the manual for your product. You might be required to return the defective part that is replaced by the CRU.
When return is required: (1) return instructions, a prepaid shipping label, and a container will be included
with the replacement CRU; and (2) you might be charged for the replacement CRU if Lenovo does not
receive the defective CRU within thirty (30) days of your receipt of the replacement CRU. See your Lenovo
Limited Warranty documentation for full details.

Common service tools
Below is the list of common service tools that you might need while servicing the computer.
• Screwdriver kit
• 1/4" drive spinner handle
• 1/4" Sq. to 1/4" hex torx adapter
• TR7-TR-10 tamper resistant torx bits
• Removal tool antenna RF connector
• USB 2.0 CD-RW/DVD-ROM combo drive II
• USB cable
• USB Maintenance Key
• USB floppy diskette drive for maintenance diskette
• USB floppy diskette drive tool kit
• Test card for integrated Smart Card
• LENOVO ThinkPad Hardware Maintenance Diskette Version 1.76 or later
Note: Download the file from the following Web site:
http://www.lenovo.com/support

Screw notices
Loose screws can cause a reliability problem. In the ThinkPad notebook computer, this problem is addressed
with special nylon-coated screws that have the following characteristics:
• They maintain tight connections.
• They do not easily come loose, even with shock or vibration.
• They are harder to tighten.
Do the following when you service this machine:
• Keep the screw kit in your tool bag. For the part number of the screw kit, go to
http://www.lenovo.com/serviceparts-lookup.
• It is recommended to use new screws.

• It is recommended to use each screw only once.
Tighten screws as follows:
• Plastic to plastic
Turn an additional 90 degrees after the screw head touches the surface of the plastic part.
90 degrees more

(Cross-section)

• Logic card to plastic
Turn an additional 180 degrees after the screw head touches the surface of the logic card.
180 degrees more

(Cross-section)

Notes:
• Ensure that you use the correct screw. It is recommended to use new screws for replacements. If you
have a torque screwdriver, tighten all screws firmly to the torque specified in the screw information
table for each step.
• Ensure that torque screwdrivers are calibrated correctly following country specifications.

Retaining serial numbers
This section includes the following descriptions:
• “Restoring the serial number of the system unit” on page 64
• “Retaining the UUID” on page 65
• “Reading or writing the ECA information” on page 66

Restoring the serial number of the system unit
When the computer was manufactured, the EEPROM on the system board was loaded with the serial
numbers of the system and all major components. These numbers need to remain the same throughout
the life of the computer.
If you replace the system board, you must restore the serial number of the system unit to its original value.
The serial number of the system unit is written on the label attached to the bottom of the computer.
If you cannot find the serial number of the system unit on the bottom of the computer, try the following
method to get the number:
Note: Before you perform the operation, ensure that the UEFI/Legacy setting within the Startup menu in
the ThinkPad Setup program is set to UEFI Only.
1. Connect a USB memory key to the computer.

Hardware Maintenance Manual

2. Go to http://www.lenovo.com/maintenanceutilities and follow the instructions on the screen to create a
Maintenance Key.
Note: Only an authorized Lenovo service technician can access the above Web site.
3. Restart the computer.
4. When the logo is displayed, press Esc. The ThinkPad Config Information Update Utility interface is
displayed.
5. Type 1 under Enter the action desired, then press Enter. The ThinkPad Serial Number Update Utility for
Asset ID screen is displayed.
6. Type 2 under Enter the action desired, then press Enter. The serial number of each device in your
computer is displayed; the serial number of the system unit is listed as follows:
20- Serial number
7. Record the serial number of the system unit.
After you replace the system board, do the following to restore the serial number of the system unit:
1. Connect the Maintenance Key to the computer.
2. When the logo is displayed, press Esc. The ThinkPad Config Information Update Utility interface is
displayed.
3. Type 1 under Enter the action desired, then press Enter. The ThinkPad Serial Number Update Utility for
Asset ID screen is displayed.
4. Type 1 under Enter the action desired, then press Enter. Then follow the instructions on the screen
to restore the serial number of the system unit.

Retaining the UUID
The Universally Unique Identifier (UUID) is a 128-bit number uniquely assigned to your computer at
production and stored in the EEPROM of your system board.
The algorithm that generates the number is designed to provide unique IDs until the year A.D. 3400. No two
computers in the world have the same number.
When you replace the system board, perform the following steps to create a new UUID for the system
board if the system board does not have a UUID:
Note: Before you perform the operation, ensure that the UEFI/Legacy setting within the Startup menu in
the ThinkPad Setup program is set to UEFI Only.
1. Connect a USB memory key to the computer.
2. Go to http://www.lenovo.com/maintenanceutilities and follow the instructions on the screen to create a
Maintenance Key.
Note: Only an authorized Lenovo service technician can access the above Web site.
3. Restart the computer.
4. When the logo screen is displayed, press Esc. The ThinkPad Config Information Update Utility interface
is displayed.
5. Type 2 under Enter the action desired, then press Enter. The Auto UUID generation utility interface is
displayed.
6. Type y under Change UUID. OK? [Y/N], then press Enter. A new UUID is created and written. If a
valid UUID already exists, it is not overwritten.

Chapter 7. FRU replacement notices

Reading or writing the ECA information
Information about Engineering Change Announcements (ECA) is stored in the EEPROM of the system board.
The electronic storage of this information simplifies the procedure to check if the ECA has been previously
applied to a machine. The machine does not need to be disassembled to check for the ECA application.
To check what ECAs have been previously applied to the machine, use the ECA Information Read/Write
function on the USB Maintenance Key.
1. Insert the Maintenance Key and restart the computer.
2. From the main menu, select 6. Set ECA Information.
3. To read the ECA information, select 2. Read ECA/rework number from EEPROM and follow the
instructions on the screen.
4. To read the box build date, select 5. Read box build date from EEPROM, and follow the instruction on
the screen.
After an ECA has been applied to the machine, the EEPROM must be updated to reflect the ECA's
application. Use the Maintenance Key to update the EEPROM.
Note: Only the ECA number is stored in the EEPROM. The machine type of the ECA is assumed to be the
same as the machine type of the machine that had the ECA applied to it.
1. Insert the Maintenance Key and restart the computer.
2. From the main menu, select 6. Set ECA Information.
3. To write the ECA information, select 1. Write ECA/rework number from EEPROM, and follow the
instructions on the screen.
4. To write the box build date, select 4. Write box build date from EEPROM, and follow the instruction on
the screen.
If the system board is being replaced, try to read the ECA information from the old system board and transfer
the information to the new system. If the system board is inoperable, this will not be possible.

Hardware Maintenance Manual

Chapter 8. Removing or replacing a FRU
This chapter provides instructions on how to remove or replace a FRU.
CRU statement for customers:
You can resolve some problems with your product with a replacement part you can install yourself, called
a “Customer Replaceable Unit” or “CRU.” Some CRUs are designated as self-service CRUs and others
are designated as optional-service CRUs. Installation of self-service CRUs is your responsibility. For
optional-service CRUs, you can either install the CRU yourself or you can request that a Service Provider
install the CRU according to the warranty service for your product. If you intend on installing the CRU,
Lenovo will ship the CRU to you. CRU information and replacement instructions are shipped with your
product and are available from Lenovo at any time upon request. You can find a list of CRUs for your product
in this Hardware Maintenance Manual. An electronic version of this manual is available for downloading at
http://www.lenovo.com/support. You might be required to return the defective CRU. When return is required:
(1) return instructions, a prepaid shipping label, and a container will be included with the replacement
CRU; and (2) you might be charged for the replacement CRU if Lenovo does not receive the defective
part within thirty (30) days of your receipt of the replacement CRU. See your Lenovo Limited Warranty
documentation for full details.

General guidelines
When removing or replacing a FRU, be sure to observe the following general guidelines:
1. Do not try to service any computer unless you have been trained and certified. An untrained person runs
the risk of damaging parts.
2. Before replacing any FRU, review Chapter 7 “FRU replacement notices” on page 63.
3. Begin by removing any FRUs that have to be removed before replacing the failing FRU. Any such FRUs
are listed at the beginning of each FRU replacement section. Remove them in the order in which they
are listed.
4. Follow the correct sequence in the steps for removing a FRU, as given in the drawings by the numbers
in square callouts.
5. When turning a screw, turn it in the direction as given by the arrow in the drawing.
6. When removing a FRU, move it in the direction as given by the arrow in the drawing.
7. To put the new FRU in place, reverse the removal procedure and follow any notes that pertain to
replacement.
8. When replacing a FRU, use the correct screws as shown in the replacement procedures.
DANGER
Before removing any FRU, turn off the computer, unplug all power cords from electrical outlets,
disconnect any interconnecting cables, and then disable the built-in battery.
Attention: After replacing a FRU, do not turn on the computer until you have made sure that all screws,
springs, and other small parts are in place and none are loose inside the computer. Verify this by shaking
the computer gently and listening for rattling sounds. Metallic parts or metal flakes can cause electrical
short circuits.
Attention: The system board is sensitive to, and can be damaged by, electrostatic discharge (ESD). Before
touching it, establish personal grounding by touching a ground point with one hand or by using an ESD strap.

Before servicing the computer
Carefully read this topic before servicing the computer.

Removing external devices
Before you start servicing, ensure that you remove all external devices installed by the customer, such as
microSD card, dock, and external display.

Disabling the built-in battery
Before replacing any FRU/CRU, ensure that you disable the built-in battery.
For Windows 10, disable Fast Startup before disabling the built-in battery.
To disable Fast Startup for Windows 10, do the following:
1. From the desktop, type Power in the search box on the taskbar, and select Power Options.
2. Click Choose what the power buttons do on the left pane.
3. Click Change settings that are currently unavailable at the top.
4. If prompted by User Account Control (UAC), click Yes.
5. Clear the Turn on fast startup check box, and then click Save changes.
To disable the built-in battery, do the following:
1. Turn off your computer and disconnect the ac power adapter and all cables from the computer.
2. Turn on your computer. When the logo screen is displayed, immediately press F1 to enter ThinkPad
Setup.
3. Select Config ➙ Power. The Power submenu is displayed.
4. Select Disable built-in battery and press Enter.
5. Select Yes in the Setup Confirmation window. The built-in battery is disabled and the computer turns off
automatically. Wait three to five minutes to let the computer cool.

Removing the micro SIM card
If the computer has a micro SIM card installed, remove the micro SIM card before you start the servicing.

Hardware Maintenance Manual

After you finish the servicing, ensure that you install the micro SIM card (if available) back into the computer.

Removing a major FRU
This section provides instructions on how to remove a major FRU.

1010 Base cover assembly
Removal steps of the base cover assembly

Chapter 8. Removing or replacing a FRU

Applying labels to the base cover:
The following illustration shows the location of each label.

17
16
4

12
11
10

8
9

1 Asset Tag

2 Asset Tag_40Y917Y

3 Certificate of Authenticity label (for Windows 7)

4 Genuine Microsoft label (for Windows 10)

5 IMEI label

6 S/N label

7 CECP label (for China)

8 GEO label (for Japan, Australia and New Zealand, Asia
Pacific/Latin America, Europe, Middle East and Africa,
Taiwan, or Korea)

9 China GEO label (for China)

10 INDIA BIS label (for India)

11 Korea NFC label (for Korea)

12 Argentina adapter label (for Argentina)

13 ISRAEL label (for Israel)

14 ICASA label (for South Africa)

15 MCMC label (for Indonesia)

16 Postel label (for Malaysia)

17 Indonesia Rating label (for Indonesia)

1020 M.2 solid-state drive and thermal rubber for M.2 solid-state drive
For access, remove this FRU:
• “1010 Base cover assembly” on page 69
Attention:
• Do not drop the drive or apply any physical shock to it. The drive is sensitive to physical shock. Improper
handling can cause damage and permanent loss of data.
• Before removing the drive, have the user make a backup copy of all the information on it if possible.
• Never remove the drive while the system is operating or in suspend mode.

Hardware Maintenance Manual

Removal steps of the M.2 solid-state drive and thermal rubber for M.2 solid-state drive

Step

Screw (quantity)

Color

Torque

M2 × L2.2 mm, flat-head, nylon-coated (1)

Black

0.181 Nm
(1.85 kgf-cm)

1030 Wireless-LAN card
Note: This information is only for the user-replaceable modules.
For access, remove this FRU:
• “1010 Base cover assembly” on page 69

Chapter 8. Removing or replacing a FRU

Removal steps of the wireless-LAN card

Note: The illustration is for wireless-LAN card with WiGig function. For wireless-LAN card without WiGig
function, the card has only two antenna connectors.
Step

Screw (quantity)

Color

Torque

M2 × L2.2 mm, flat-head, nylon-coated (1)

Black

0.181 Nm
(1.85 kgf-cm)

When installing: Plug the gray cable into the main connector and the black cable into the auxiliary connector.
For wireless-LAN card with WiGig function, also plug the WiGig cable into the third connector on the card.

1040 Wireless-WAN card
Note: This information is only for the user-replaceable modules.
For access, remove this FRU:
• “1010 Base cover assembly” on page 69

Hardware Maintenance Manual

Removal steps of the wireless-WAN card

Step

Screw (quantity)

Color

Torque

M2 × L2.2 mm, flat-head, nylon-coated (1)

Black

0.181 Nm
(1.85 kgf-cm)

1050 Coin-cell battery
For access, remove this FRU:
• “1010 Base cover assembly” on page 69
• “1090 Built-in battery” on page 77
Removal steps of the coin-cell battery

1060 Thermal fan assembly
For access, remove this FRU:

Chapter 8. Removing or replacing a FRU

•

“1010 Base cover assembly” on page 69

Removal steps of the thermal fan assembly
Note: Loosen the screws 2 in ascending alphabetical order as illustrated.

When installing:
• Do not touch the top and bottom areas marked a in the following illustration.

• Tighten the screws in ascending order by following the number marked beside each screw. Otherwise,
the system board might get damaged.

Hardware Maintenance Manual

1070 USB cable
For access, remove this FRU:
• “1010 Base cover assembly” on page 69
• “1060 Thermal fan assembly” on page 73
Removal steps of the USB cable

3
4

Step

Screw (quantity)

Color

Torque

M2 × L2.2 mm, flat-head shoulder, nylon-coated (2)

Black

0.181 Nm
(1.85 kgf-cm)

1080 Speaker assembly
For access, remove this FRU:
• “1010 Base cover assembly” on page 69

Chapter 8. Removing or replacing a FRU

•

“1090 Built-in battery” on page 77

Removal steps of the speaker assembly

2
2

3
3

3
4

Step

Screw (quantity)

Color

Torque

M2 × L5 mm, flat-head shoulder, nylon-coated (4)

Black

0.181 Nm
(1.85 kgf-cm)

Hardware Maintenance Manual

1090 Built-in battery
Important notices for replacing a battery
Attention: Lenovo has no responsibility for the performance or safety of unauthorized batteries, and
provides no warranties for failures or damage arising out of their use.
The Lenovo Solution Center program provides an automatic battery diagnostic test that determines if the
battery is defective. A battery FRU should not be replaced unless this diagnostic test shows that the battery
is defective. The only exception to this is if the battery is physically damaged or a customer is reporting a
possible safety issue.
If the Lenovo Solution Center program is not installed on the computer, the customer should download and
install the program to diagnose the battery, before getting a non-physically damaged battery replaced. Note
that the replacement of a physically damaged battery is not covered by the warranty.
For access, remove this FRU:
• “1010 Base cover assembly” on page 69
Removal steps of the built-in battery
DANGER
Use only the authorized battery specified for your computer. Any other battery could ignite or
explode.
1

Step

Screw (quantity)

Color

Torque

M2 × L5 mm, flat-head, nylon-coated (4)

Black

0.181 Nm
(1.85 kgf-cm)

Chapter 8. Removing or replacing a FRU

2
2
2

Installing the built-in battery
Note: Ensure that the two battery tabs are inserted underneath the system board.

Hardware Maintenance Manual

4
4
4

1100 Wireless-WAN antenna kit or wireless-WAN antenna filler, and
cable holder for wireless-WAN antenna
For access, remove this FRU:
• “1010 Base cover assembly” on page 69
• “1090 Built-in battery” on page 77
• “1050 Coin-cell battery” on page 73

Chapter 8. Removing or replacing a FRU

Removal steps of the wireless-WAN antenna kit

2
1

4
4
5

4
4

Step

Screw (quantity)

Color

Torque

M2 × L3 mm, flat-head shoulder, nylon-coated (4)

Silver

0.181 Nm
(1.85 kgf-cm)

When installing:
Plug the orange cable into the main connector on the card; and plug the blue cable into the auxiliary
connector on the card.

Hardware Maintenance Manual

Removal steps of the wireless-WAN antenna filler
1
1
2

1
1

Step

Screw (quantity)

Color

Torque

M2 × L3 mm, flat-head shoulder, nylon-coated (4)

Silver

0.181 Nm
(1.85 kgf-cm)

Removal steps of the cable holder for wireless-WAN antenna

1110 Wireless-LAN antenna kit and cable holder for wireless-LAN
antenna
For access, remove this FRU:
• “1010 Base cover assembly” on page 69

Chapter 8. Removing or replacing a FRU

Removal steps of the wireless-LAN antenna kit

2
2

3
4

Step

Screw (quantity)

Color

Torque

M2 × L3 mm, flat-head shoulder, nylon-coated (2)

Silver

0.181 Nm
(1.85 kgf-cm)

When installing:
Plug the gray cable into the main connector on the card; and plug the black cable into the auxiliary
connector on the card.

Hardware Maintenance Manual

Removal steps of the cable holder for wireless-LAN antenna

1
2

1120 WiGig antenna kit and WiGig bracket
For access, remove this FRU:
• “1010 Base cover assembly” on page 69
Removal steps of the WiGig antenna kit and WiGig bracket

2
2

Chapter 8. Removing or replacing a FRU

Step

Screw (quantity)

Color

Torque

M2 × L3 mm, flat-head shoulder, nylon-coated (1)

Silver

0.181 Nm
(1.85 kgf-cm)

1130 Trackpad cable
For access, remove these FRUs in order:
• “1010 Base cover assembly” on page 69
• “1090 Built-in battery” on page 77
Removal steps of the trackpad cable

Step

Screw (quantity)

Color

Torque

M2 × L2.2 mm, flat-head, nylon-coated (1)

Black

0.181 Nm
(1.85 kgf-cm)

Hardware Maintenance Manual

5
6

Chapter 8. Removing or replacing a FRU

1140 Trackpad assembly and trackpad insulation tape
For access, remove this FRU:
• “1010 Base cover assembly” on page 69
• “1090 Built-in battery” on page 77
Removal steps of the trackpad assembly and trackpad insulation tape

Note: Loosen the screws 6 in ascending alphabetical order as illustrated.

6a
6b

Step

Screw (quantity)

Color

Torque

M2 × L1.8 mm, flat-head, nylon-coated (4)

Silver

0.181 Nm
(1.85 kgf-cm)

Hardware Maintenance Manual

1150 NFC card with NFC support bracket
For access, remove this FRU:
• “1010 Base cover assembly” on page 69
• “1090 Built-in battery” on page 77
Removal steps of the NFC card with NFC support bracket

Chapter 8. Removing or replacing a FRU

3
4

1160 dc-in support bracket
For access, remove this FRU:
• “1010 Base cover assembly” on page 69

Hardware Maintenance Manual

Removal steps of the dc-in support bracket

Step

Screw (quantity)

Color

Torque

M2 × L3 mm, flat-head shoulder, nylon-coated (2)

Silver

0.181 Nm
(1.85 kgf-cm)

1170 micro-SIM-card tray
For access, remove this FRU:
• “1010 Base cover assembly” on page 69
Removal steps of the micro-SIM-card tray

1180 SD support bracket
For access, remove this FRU:
• “1010 Base cover assembly” on page 69

Chapter 8. Removing or replacing a FRU

Removal steps of the SD support bracket

2
2
3

Step

Screw (quantity)

Color

Torque

M2 × L5 mm, flat-head shoulder, nylon-coated (2)

Black

0.181 Nm
(1.85 kgf-cm)

1190 System board assembly
Important notices for handling the system board
When handling the system board, read the following:
• The system board has an accelerometer, which can be broken when several thousands of G-forces
are applied.
Note: Dropping a system board from a height of as little as six inches so that it falls flat on a hard bench
can subject the accelerometer to as much as 6000 G's of shock.
• Be careful not to drop the system board on a bench top that has a hard surface, such as metal, wood, or
composite.
• Avoid rough handling of any kind.
• At every point in the process, be sure not to drop or stack the system board.
• If you put a system board down, be sure to put it only on a padded surface such as an ESD mat or a
corrugated conductive material.
For access, remove these FRUs in order:
• “1010 Base cover assembly” on page 69
• “1020 M.2 solid-state drive and thermal rubber for M.2 solid-state drive” on page 70
90

Hardware Maintenance Manual

•
•
•
•
•
•
•
•

“1030 Wireless-LAN card” on page 71
“1040 Wireless-WAN card” on page 72
“1060 Thermal fan assembly” on page 73
“1090 Built-in battery” on page 77
“1160 dc-in support bracket” on page 88
“1170 micro-SIM-card tray” on page 89
“1180 SD support bracket” on page 89
“1110 Wireless-LAN antenna kit and cable holder for wireless-LAN antenna” on page 81

Attention: The microprocessor a soldered on the system board is extremely sensitive. When you service
the system board, avoid any kind of rough handling.
a

Removal steps of the system board assembly

9
10
8

12
11

7
6
4
5

2
1
3

Chapter 8. Removing or replacing a FRU

13
13

Step

Screw (quantity)

Color

Torque

M2 × L3 mm, flat-head, nylon-coated (3)

Silver

0.181 Nm
(1.85 kgf-cm)

M2 × L2.2 mm, flat-head, nylon-coated (1)

Black

0.181 Nm
(1.85 kgf-cm)

1200 Power button card and power-button-card cable
For access, remove these FRUs in order:
• “1010 Base cover assembly” on page 69
• “1020 M.2 solid-state drive and thermal rubber for M.2 solid-state drive” on page 70
• “1030 Wireless-LAN card” on page 71
• “1040 Wireless-WAN card” on page 72
• “1060 Thermal fan assembly” on page 73
• “1090 Built-in battery” on page 77
• “1190 System board assembly” on page 90

Hardware Maintenance Manual

Removal steps of the power button card and the power-button-card cable

Step

Screw (quantity)

Color

Torque

M2 × L2.2 mm, flat-head, nylon-coated (1)

Black

0.181 Nm
(1.85 kgf-cm)

1210 Audio card with audio-card cable
For access, remove these FRUs in order:
• “1010 Base cover assembly” on page 69
• “1020 M.2 solid-state drive and thermal rubber for M.2 solid-state drive” on page 70
• “1030 Wireless-LAN card” on page 71
• “1040 Wireless-WAN card” on page 72
• “1060 Thermal fan assembly” on page 73
• “1090 Built-in battery” on page 77
• “1190 System board assembly” on page 90

Chapter 8. Removing or replacing a FRU

Removal steps of the audio card with audio-card cable

3
4
2
1

6
7

Step

Screw (quantity)

Color

Torque

M2 × L3 mm, flat-head, nylon-coated (1)

Black

0.181 Nm
(1.85 kgf-cm)

M2 × L2.2 mm, flat-head, nylon-coated (1)

Black

0.181 Nm
(1.85 kgf-cm)

1220 LCD unit
For access, remove these FRUs in order:
• “1010 Base cover assembly” on page 69

Hardware Maintenance Manual

Removal steps of the LCD unit
3
3

2
1

Step

Screw (quantity)

Color

Torque

M2.5 × L4 mm, flat-head, nylon-coated (6)

Black

0.294 Nm
(3.0 kgf-cm)

Chapter 8. Removing or replacing a FRU

1230 Keyboard bezel assembly
For access, remove these FRUs in order:
• “1010 Base cover assembly” on page 69
• “1020 M.2 solid-state drive and thermal rubber for M.2 solid-state drive” on page 70
• “1030 Wireless-LAN card” on page 71
• “1040 Wireless-WAN card” on page 72
• “1050 Coin-cell battery” on page 73
• “1060 Thermal fan assembly” on page 73
• “1070 USB cable” on page 75
• “1080 Speaker assembly” on page 75
• “1090 Built-in battery” on page 77
• “1100 Wireless-WAN antenna kit or wireless-WAN antenna filler, and cable holder for wireless-WAN
antenna” on page 79
• “1110 Wireless-LAN antenna kit and cable holder for wireless-LAN antenna” on page 81
• “1120 WiGig antenna kit and WiGig bracket” on page 83
• “1130 Trackpad cable” on page 84
• “1140 Trackpad assembly and trackpad insulation tape” on page 86
• “1150 NFC card with NFC support bracket” on page 87
• “1160 dc-in support bracket” on page 88
• “1170 micro-SIM-card tray” on page 89
• “1180 SD support bracket” on page 89
• “1190 System board assembly” on page 90
• “1200 Power button card and power-button-card cable” on page 92
• “1210 Audio card with audio-card cable” on page 93
• “1220 LCD unit” on page 94

Removing an LCD FRU
This section provides instructions on how to remove an LCD FRU.

2010 LCD-bezel assembly, protection plate assembly, and metal
protection plate
For access, remove these FRUs in order:
• “1010 Base cover assembly” on page 69
96

Hardware Maintenance Manual

•

“1220 LCD unit” on page 94

Removal steps of the LCD-bezel assembly, protection plate assembly, and metal protection plate

When installing: After the LCD-bezel assembly is removed, it cannot be used anymore. A new LCD-bezel
assembly is required for replacement.

2020 Hinges and LCD bottom bezel
For access, remove these FRUs in order:
• “1010 Base cover assembly” on page 69
• “1220 LCD unit” on page 94
• “2010 LCD-bezel assembly, protection plate assembly, and metal protection plate” on page 96

Chapter 8. Removing or replacing a FRU

Removal steps of the hinges and LCD bottom bezel
1

1
2

Step

Screw (quantity)

Color

Torque

M2.5 × L2.2 mm, big-head, nylon-coated (4)

Black

0.294 Nm
(3.0 kgf-cm)

2030 LCD panel assembly and LCD cable
For access, remove these FRUs in order:
• “1010 Base cover assembly” on page 69
• “1220 LCD unit” on page 94
• “2010 LCD-bezel assembly, protection plate assembly, and metal protection plate” on page 96
• “2020 Hinges and LCD bottom bezel” on page 97

Hardware Maintenance Manual

Removal steps of the LCD panel assembly and LCD cable

2040 Camera/microphone card, and camera/LED cable
For access, remove these FRUs in order:
• “1010 Base cover assembly” on page 69
• “1220 LCD unit” on page 94
• “2010 LCD-bezel assembly, protection plate assembly, and metal protection plate” on page 96
• “2020 Hinges and LCD bottom bezel” on page 97
• “2030 LCD panel assembly and LCD cable” on page 98
Removal steps of the camera/microphone card

1
2

1
3

Chapter 8. Removing or replacing a FRU

Removal steps of the camera/LED cable

100

Hardware Maintenance Manual

Appendix A. Notices
Lenovo may not offer the products, services, or features discussed in this document in all countries. Consult
your local Lenovo representative for information about the products and services currently available in your
area. Any reference to a Lenovo product, program, or service is not intended to state or imply that only that
Lenovo product, program, or service may be used. Any functionally equivalent product, program, or service
that does not infringe any Lenovo intellectual property right may be used instead. However, it is the user’s
responsibility to evaluate and verify the operation of any other product, program, or service.
Lenovo may have patents or pending patent applications covering subject matter described in this
document. The furnishing of this document does not give you any license to these patents. You can send
license inquiries, in writing, to:
Lenovo (United States), Inc.
1009 Think Place - Building One
Morrisville, NC 27560
U.S.A.
Attention: Lenovo Director of Licensing
LENOVO PROVIDES THIS PUBLICATION “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF NON-INFRINGEMENT,
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some jurisdictions do not allow
disclaimer of express or implied warranties in certain transactions, therefore, this statement may not apply
to you.
This information could include technical inaccuracies or typographical errors. Changes are periodically
made to the information herein; these changes will be incorporated in new editions of the publication.
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The products described in this document are not intended for use in implantation or other life support
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shall operate as an express or implied license or indemnity under the intellectual property rights of Lenovo
or third parties. All information contained in this document was obtained in specific environments and is
presented as an illustration. The result obtained in other operating environments may vary.
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the materials for this Lenovo product, and use of those Web sites is at your own risk.
Any performance data contained herein was determined in a controlled environment. Therefore, the result
obtained in other operating environments may vary significantly. Some measurements may have been
made on development-level systems and there is no guarantee that these measurements will be the same
on generally available systems. Furthermore, some measurements may have been estimated through
extrapolation. Actual results may vary. Users of this document should verify the applicable data for their
specific environment.

101

Electronic emissions notices
For electronic emission information on Class B digital devices, refer to the corresponding information in
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Trademarks
The following terms are trademarks of Lenovo in the United States, other countries or both:
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Microsoft, Windows, and Cortana are trademarks of the Microsoft group of companies.
Thunderbolt is a trademark of Intel Corporation or its subsidiaries in the U.S. and/or other countries.
DisplayPort is a trademark of the Video Electronics Standards Association.
The terms HDMI and HDMI High-Definition Multimedia Interface are trademarks or registered trademarks of
HDMI Licensing LLC in the United States and other countries.
WiGig is a registered trademark of Wi-Fi Alliance.
Other company, product, or service names may be the trademarks or service marks of others.

102

Hardware Maintenance Manual

Part Number: SP40M11925_02

Printed in

(1P) P/N: SP40M11925_02

*1PSP40M11925_02*

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