Lenovo X380 Yoga Hardware Maintenance Manual ( English) (HMM) Think Pad Laptop (Think Pad) X380yoga Hmm En

2018-02-07

User Manual: Lenovo ( English) Hardware Maintenance Manual (HMM) - ThinkPad X380 Yoga X380 Yoga Laptop (ThinkPad) ThnkPad X380 Yoga Laptop (ThinkPad)

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X380 Yoga Hardware Maintenance Manual

Note: Before using this information and the product it supports, be sure to read the general information
under Appendix A “Notices” on page 99.

First Edition (January 2018)
© Copyright Lenovo 2018.
LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant 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) . . . .

. . 1
. . 1
. . 2
. . 3
. . 4
. . 4

Chapter 2. Important service
information . . . . . . . . . . . . . . . 21
Strategy for replacing FRUs . . . . . . . . .
Strategy for replacing a storage drive . . .
Important notice for replacing a system
board . . . . . . . . . . . . . . . .
How to use error message . . . . . . . .
Strategy for replacing FRUs for CTO, special bid
model, and standard models. . . . . . . . .
Product definition . . . . . . . . . . .
FRU identification . . . . . . . . . . .

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21
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22
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Chapter 3. General checkout . . . . . 25
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 built-in battery and operational
charging . . . . . . . . . . . . . . .
Checking the coin-cell battery . . . . . .

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Chapter 4. Related service
information . . . . . . . . . . . . . . . 31
Recovery information . . . . . . . . . . .
Resetting your computer . . . . . . . .
Using advanced startup options . . . . .
Recovering your operating system if Windows
10 fails to start . . . . . . . . . . . .
Creating and using a recovery USB drive . .
Passwords. . . . . . . . . . . . . . . .
Power-on password . . . . . . . . . .
Hard disk password . . . . . . . . . .
Supervisor password . . . . . . . . . .

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How to remove the power-on password
How to remove the hard disk password.
Power management . . . . . . . . . .
Sleep mode . . . . . . . . . . .
Hibernation mode . . . . . . . . .
Symptom-to-FRU index . . . . . . . .
Numeric error codes . . . . . . . .
Error messages . . . . . . . . . .
Beep errors. . . . . . . . . . . .
No-beep symptoms . . . . . . . .
LCD-related symptoms . . . . . . .
Intermittent problems . . . . . . . .
Undetermined problems . . . . . .

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Chapter 5. Using the special keys. . . 43
Chapter 6. Status indicators . . . . . 45
Chapter 7. Locations . . . . . . . . . 47
Locating computer controls and connectors
Locating FRUs and CRUs . . . . . . . .
Major FRUs . . . . . . . . . . .
LCD FRUs (for models without infrared
camera) . . . . . . . . . . . . .
LCD FRUs (for models with infrared
camera) . . . . . . . . . . . . .
Miscellaneous parts . . . . . . . .
Connector and cable guide . . . . .
Looking up FRU information . . . . . . .

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51

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Chapter 8. FRU replacement
notices . . . . . . . . . . . . . . . . . 61
Screw notices . . . . . . . . . . . . .
Retaining serial numbers . . . . . . . . .
Restoring the serial number of the system
unit . . . . . . . . . . . . . . . .
Retaining the UUID. . . . . . . . . .

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61
62

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62
63

Chapter 9. Removing or replacing a
FRU. . . . . . . . . . . . . . . . . . . 65
General guidelines. . . . . . . . . . .
Before servicing the computer . . . . . .
Disabling the built-in battery . . . . .
1010 ThinkPad Pen Pro or dummy cap. . .
1020 Micro-SIM-card tray (available on some
models) . . . . . . . . . . . . . . .
1030 Base cover assembly . . . . . . .
1040 Battery . . . . . . . . . . . . .

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66
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67

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1050 Hall sensor card . . . . . . . . . . .
1070 M.2 SSD . . . . . . . . . . . . . .
1080 Coin-cell battery . . . . . . . . . . .
1090 Wireless-LAN card . . . . . . . . . .
1100 Wireless-WAN card (available on some
models) . . . . . . . . . . . . . . . . .
1110 Audio card . . . . . . . . . . . . .
1120 Pen holder . . . . . . . . . . . . .
1130 Power button card and power-button-card
cable . . . . . . . . . . . . . . . . . .
1140 Thermal fan assembly . . . . . . . . .
1150 Speaker assembly . . . . . . . . . .
1160 Smart-card reader, smart-card-reader cable,
or dummy smart-card door . . . . . . . . .
1170 NFC card, NFC cable, and NFC antenna . .
1180 Trackpad and trackpad cable . . . . . .

X380 Yoga Hardware Maintenance Manual

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1190 System board . . . . . . . . . . . .
1200 LCD unit . . . . . . . . . . . . . .
1210 Keyboard assembly . . . . . . . . . .
2010 Strip bezel. . . . . . . . . . . . . .
2020 LCD panel assembly. . . . . . . . . .
2030 Camera/microphone card (available on some
models) . . . . . . . . . . . . . . . . .
2040 Sensor card . . . . . . . . . . . . .
2050 LCD hinges . . . . . . . . . . . . .
2060 LCD cable and LED cable assembly . . .
2070 Wireless kit . . . . . . . . . . . . .

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Appendix A. Notices . . . . . . . . . . 99
Electronic emissions notices . . . . . . . . . . 100
Trademarks . . . . . . . . . . . . . . . . 100

About this manual
This manual contains service and reference information for the following ThinkPad® products:
ThinkPad 380 Yoga

Machine types (MT) 20LH, 20LJ, 20LK, and 20LL

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 21.

iii

X380 Yoga Hardware Maintenance Manual

Chapter 1. Safety information
This chapter presents following safety information that you need to 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 need 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,
ungrounded 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
– Parts similar to those 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.

X380 Yoga 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:
https://support.lenovo.com/partslookup
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 nonThinkPad 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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X380 Yoga Hardware Maintenance Manual

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 21
– “Strategy for replacing a storage drive” on page 21
– “Important notice for replacing a system board” on page 22
– “How to use error message” on page 22
• “Strategy for replacing FRUs for CTO, special bid model, and standard models” on page 22
– “Product definition” on page 22
– “FRU identification” on page 22
Important:
• Advise customers to contact the Lenovo® Customer Support Center if they need any assistance in
obtaining or installing any software fixes, drivers, and UEFI BIOS downloads. Telephone numbers for
Lenovo Support are available at:
https://pcsupport.lenovo.com/supportphonelist
• System Disassembly/Reassembly videos that show the FRU removals or replacements for the Lenovoauthorized service technicians are available in the following support site:
https://www.lenovoservicetraining.com/ion/

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 https://support.lenovo.com 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 a storage drive
Always try to run a low-level format before replacing a storage drive. This will cause all customer data on the
drive 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
cause damage to 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 model, 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)
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: 20AACTO1WW).
Special bid model
This model is a unique configuration that has been negotiated between Lenovo and the customer. A unique
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: 20AA000955). 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:
20AA0009UK).

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:
1. Go to https://support.lenovo.com/partslookup.

X380 Yoga Hardware Maintenance Manual

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 https://support.lenovo.com.
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

X380 Yoga Hardware Maintenance Manual

Chapter 3. General checkout
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:
https://support.lenovo.com/partslookup
• A FRU should not be replaced because of a single, unreproducible failure. Single failures can occur
for a variety of 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

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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 the computer

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.
Lenovo Companion or Lenovo Vantage is preinstalled on your computer. It 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.
Note: If you are unable to isolate and repair the problem yourself after running the program, save and print
the log files created by the program. You need the log files when you speak to a Lenovo technical support
representative.
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:
https://support.lenovo.com
For additional information, see the help system of the program.

Quick test programs
Lenovo provides quick test programs to troubleshoot and resolve computer problems.
To download and install a quick test program, go to https://www.lenovo.com/diags and follow the instructions
on the Web site.
To run a test using a quick test program, do the following:
1. Go to the C:\SWTOOLS\ldiag directory.
2. Double-click the lsc_lite.exe file.

X380 Yoga Hardware Maintenance Manual

3. When the User Account Control window opens, if any, 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.
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 28,
and check the power sources. If an error code is displayed, go to “Symptom-to-FRU index” on page 36
for error code descriptions and troubleshooting hints.
2. When the logo screen 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 program enables
you to view system information and test some hardware devices in your computer, such as memory, storage
devices, the LCD, and system board buses. To use the bootable diagnostic program, you can create a
bootable diagnostic medium using a USB device or disc.
To create a bootable diagnostic medium, do the following:
1. Go to https://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 disc.
To use the diagnostic medium you have created, do the following:
• If you have created the bootable diagnostic medium using 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
28, and check the power sources. If an error code is displayed, go to “Symptom-to-FRU index” on
page 36 for error code descriptions and troubleshooting hints.
3. When the logo screen 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 launches.
5. Follow the instructions on the screen to use the diagnostic program.
• If you have created the bootable diagnostic medium using a disc, do the following:
1. Turn on the computer. If the computer cannot be turned on, go to “Power system checkout” on page
28, and check the power sources. If an error code is displayed, go to “Symptom-to-FRU index” on
page 36 for error code descriptions and troubleshooting hints.
2. Insert the disc into the optical drive.

Chapter 3. General checkout

3. Restart the computer.
4. When the logo screen 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
launches.
6. Follow the instructions on the screen to use the diagnostic program.

Power system checkout
To verify a power symptom, do the following:
1. Turn off the computer.
2. Connect the ac power adapter.
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 28
• “Checking the built-in battery and operational charging” on page 28
• “Checking the coin-cell battery” on page 29

Checking the ac power adapter
You are here because the computer fails only when the ac power adapter is used.
• If the power problem occurs only when the docking station is used, replace the docking station.
• If the system status indicator does not blink three times when an ac power source is connected, check the
power cord of the ac power adapter for correct continuity and installation.
Ensure that you use the USB-C type ac power adapter that is shipped with the computer to provide enough
power to the computer. Otherwise, a message will be displayed, prompting you that the computer will not be
charged or will be charged slowly.
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. Start Lenovo Companion program or Lenovo Vantage, and then click Hardware Settings ➙ Power. The
ac power adapter information is displayed.
If the ac power adapter is working but the computer does not charge during operation, go to “Checking the
built-in battery and operational charging” on page 28.

Checking the built-in battery and operational charging
This computer 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.

X380 Yoga Hardware Maintenance Manual

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.
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%.
2. Connect the computer to ac power to charge the battery. If the battery status icon in the Windows
notification area indicates that the battery is not charging, remove the battery and let it return to room
temperature.
3. Reinstall the battery. If the battery is still not charging, replace the battery.
4. Check the battery status icon 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 66.
2. Remove the coin-cell battery. See “1080 Coin-cell battery” on page 72.
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.

Chapter 3. General checkout

X380 Yoga Hardware Maintenance Manual

Chapter 4. Related service information
This chapter presents following information:
• “Recovery information” on page 31
• “Passwords” on page 33
• “Power management” on page 35
• “Symptom-to-FRU index” on page 36
Service Web site: When the latest maintenance diskette and the system program service diskette become
available, they will be posted on https://support.lenovo.com.

Recovery information
This chapter 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.

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:
https://pcsupport.lenovo.com/supportphonelist
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, reset the computer by inserting a straightened paper clip into the
emergency-reset hole. If you still 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.

X380 Yoga Hardware Maintenance Manual

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.

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 34.

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.

Chapter 4. Related service information

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.
2. Remove the battery. For instructions on how to remove the battery, see “1040 Battery” on page 69.
3. Remove the coin-cell battery. For instructions on how to remove the coin-cell battery, see “1080 Coincell battery” on page 72. Wait for a few seconds.
4. Reinstall the coin-cell battery.
5. Reinstall the battery. 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 logo screen comes up, 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.

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 storage drive 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 logo screen comes up, immediately press F1 to enter the ThinkPad Setup program.
3. Select Security.
4. Select Password.
5. Select Hard-disk x password, where x is the letter of the hard disk drive. A pop-up window opens.
6. Select Master hard disk password.
7. 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.
8. Press F10.
9. 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.

X380 Yoga Hardware Maintenance Manual

Power management
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 put your computer into sleep mode, 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 cause the computer to return from sleep mode and resume operation, do one of the following:
• Press the Fn key.
• 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 storage drive.
• The system is powered off.
Note: If the computer enters the hibernation mode while it is docked to the docking station or the port
replicator, 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.
Also, the computer goes into hibernation mode automatically after a period of inactivity specified in power
plan settings.

Chapter 4. Related service information

When the power is turned on, the computer returns from hibernation mode and resumes operation. The
hibernation file in the boot record on the storage drive is read, and system status is restored from the storage
drive.

Symptom-to-FRU index
This section contains following information:
• “Numeric error codes” on page 36
• “Error messages” on page 38
• “Beep errors” on page 38
• “No-beep symptoms” on page 39
• “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

FRU or action, in sequence

0177
Bad SVP data, stop POST task— Checksum of the
supervisor password in the EEPROM is not correct.

Replace the system board.

0183
Bad CRC of Security Settings in EFI Variable. Enter the
ThinkPad Setup program. – The checksum of the Security
settings in the EFI Variable is not correct.

1. Run the ThinkPad Setup program. The settings
will be corrected automatically. Then save the
current settings by pressing F10.
2. Replace the system board.

0187
EAIA data access error

Replace the system board.

0188
Invalid RFID Serialization Information Area.

Replace the system board.

0189
Invalid RFID Configuration Information Area.

Replace the system board.

0190
Critical low-battery error

X380 Yoga Hardware Maintenance Manual

1. Charge the battery pack.
2. Replace the battery pack.

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

FRU or action, in sequence

0191
System Security—Invalid Remote Change requested.

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

0199
System Security— Security password retry count
exceeded.

1. Run the ThinkPad Setup program. The retry count
will be reset. Then save the current settings by
pressing F10.
2. Replace the system board.

0271
Check Date and Time settings.

1. Run ThinkPad Setup to reset the time and date
2. Replace the coin-cell battery and run ThinkPad Setup
to reset the time and date.

1802
Unauthorized network card is plugged in—Power off and
remove the network card.

1. Remove network card.
2. Replace the system board.

1820
More than one external fingerprint readers are attached.

Turn off the computer. Remove all the external
fingerprint readers except the one that you have
configured in the operating system.

2100
Detection error on storage device (Main SATA HDD)

1. Reseat the storage device.
2. Replace the storage device.

2101
Detection error on storage device (Main NVMe HDD)

1. Reseat the storage device.
2. Replace the storage device.

2102
Detection error on storage device (M.2 SATA SSD)

1. Reseat the storage device.
2. Replace the storage device.

2103
Detection error on storage device (Optane)

1. Reseat the storage device.
2. Replace the storage device.

2110
Read error on HDD0 (Main HDD)

1. Reseat the storage device.
2. Replace the storage device.

2111
Read error on SSD1 (M.2)

1. Reseat the M.2 solid-state drive (SSD).
2. Replace the M.2 solid-state drive.

2112
Read error on SSD2 (M.2)

1. Reseat the M.2 SSD.
2. Replace the M.2 SSD.

2200
Machine Type and Serial Number are invalid.

Replace the system board.

2201
Machine UUID is invalid

Replace the system board.

Chapter 4. Related service information

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

FRU or action, in sequence
1. Replace the fan.
2. Apply thermal grease.
3. Replace the system board.

Thermal sensing error.

Replace the system board.

This system does not support batteries that are not
genuine Lenovo-made or authorized. The system will
continue to boot, but may not charge unauthorized
batteries.
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.

Replace the battery.

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 https://support.lenovo.com/smartbeep or scan the following QR Code.

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.

X380 Yoga Hardware Maintenance Manual

Error codes
0001: Reset error (platform reset not de-asserted)

Solutions
1. Remove all power resources (the ac power
adapter, removable battery, and coin-cell battery).
If your computer has a built-in battery, 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
0281: General embedded controller error
0282: Memory module error

Replace the system board (service provider only).
Replace the system board (service provider only).
1. Reinstall or replace the memory module.
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
0287: Discrete graphics error

Replace the system board (service provider only).
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).

No-beep symptoms
Table 3. No-beep symptoms
Symptom or error

FRU or action, in sequence

No beep, power-on indicator on, LCD blank, and no
POST.

1. Ensure that every connector is connected tightly
and correctly.
2. Replace the system board.

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

1. Replace the system board.

The power-on password prompt appears.

A power-on password or a supervisor password is set.
Type the password and press Enter.

The hard-disk password prompt appears.

A hard disk password is set. Type the password and
press Enter.

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 notebook computers 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 4. LCD-related symptoms
Symptom or error

FRU or action, in sequence

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

Replace the system board.

•
•
•
•

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 all 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 28.
1. Turn off the computer.
2. Visually check each FRU for damage. Replace any damaged FRU.

X380 Yoga Hardware Maintenance Manual

3. Remove or disconnect all of the following devices:
a. Non-ThinkPad devices
b. Devices attached to the docking station or the port replicator
c. Printer, mouse, and other external devices
d. Battery
e. Storage drive
f. External diskette drive or optical drive
g. PC cards
4. Turn on the computer.
5. Determine whether the problem has been solved.
6. If the problem does not recur, reconnect the removed devices one at a time until you find the failing FRU.
7. 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

X380 Yoga Hardware Maintenance Manual

Chapter 5. Using the 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 3

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 Lenovo - Keyboard Manager and the Keyboard Manager window is displayed.
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.
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.

•

Darken the computer display.

•

Brighten the computer display.

•

Manage external displays.

•

Enable or disable the built-in wireless features.

•

Open the Settings window.

•

Enable or disable the built-in Bluetooth features.

•

Open a keyboard setting page.

•

Invoke the function defined by yourself.

Hidden 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 the Fn key or the
power button.
• Fn+PrtSc: Open the Snipping Tool program.
• Fn+Spacebar: If your computer supports keyboard backlight, press Fn+Spacebar to switch between the
different keyboard backlight status (off, low, or high).
• Fn+Left arrow key: This key combination has the same function as the Home key.
• Fn+Right arrow key: This key combination has the same function as the End key.

X380 Yoga Hardware Maintenance Manual

Chapter 6. Status indicators
This topic provides information about locating and identifying the various status indicators on your computer.
Note: Depending on the model, your computer might look different from the following illustrations.

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 “Using the special
keys” on page 43.

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.
6 7

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.
8

ac power status indicator

This indicator shows the ac power and charging status of the computer.
• White: connected to ac power (battery power 90%–100%)
• Amber: connected to ac power (battery power 0%–90%)
• Off: not connected to ac power

X380 Yoga Hardware Maintenance Manual

Chapter 7. Locations
This chapter introduces the locations of the hardware components on your computer.

Locating computer controls and connectors
This topic introduces the locations of the computer controls and connectors.
Front view

1 Microphones (available on some models)

2 Conventional camera (available on some models)

3 Infrared camera (available on some models)

4 Ambient light sensor

5 Speakers

6 Fingerprint reader

7 TrackPoint® buttons

8 Trackpad

9 NFC label (available on some models)

10 TrackPoint pointing stick

11 Multi-touch screen

Left-side view

1 Power connector

2 USB-C™ connector (Thunderbolt™ 3 compatible)

3 Mini Ethernet connector

4 Always On USB 3.0 connector

5 Smart-card slot (available on some models)

Right-side view

1 Power button

2 ThinkPad Pen Pro (available on some models)

3 Audio connector

4 MicroSD card slot

5 Nano-SIM-card tray (available on some models)

6 USB 3.0 connector

7 HDMI™ connector

8 Mini security-lock slot

X380 Yoga Hardware Maintenance Manual

Bottom view and rear view

1 Fan louvers

2 Keyboard drainage holes

3 Emergency-reset hole

Locating FRUs and CRUs
This topic introduces the following service parts:
• “Major FRUs” on page 51
• “LCD FRUs (for models without infrared camera)” on page 53

Chapter 7. Locations

Notes:
• 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.” Installation of self-service CRUs is your responsibility. 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 https://
support.lenovo.com. 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 and FRU:
– 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.
– 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/CRU is available for all types or models, unless otherwise specified.
• A Self-service CRU is identified by a single asterisk (*) in the CRU ID column. An Optional-service CRU is identified
by two asterisks (**). An N in the CRU ID column means that the part is not a CRU.
• FRUs marked with OP are available as options.

X380 Yoga Hardware Maintenance Manual

Major FRUs

Chapter 7. Locations

Table 5. Major FRUs
No.

FRU descriptions

CRU ID

LCD unit (See “LCD FRUs (for models without infrared camera)” on page 53.)

Keyboard assembly

Nano-SIM-card tray

Keyboard bezel assembly with fingerprint reader card

Pen holder with pen charger

ThinkPad Pen Pro *

Fingerprint-reader cable

Audio card

Audio-card cable

Power-button-card cable

Power button card

Hall sensor card

Hall-sensor-card cable

M.2 SSD

Wireless-LAN card
card*

Wireless-WAN

Built-in battery

Base cover assembly

Smart-card-reader cable *

Smart-card reader * or dummy smart card *

NFC antenna

NFC card *

NFC cable *

Coin-cell battery

System board

dc-in bracket

Thermal fan assembly

Speaker assembly

Trackpad cable

Trackpad

Lenovo factory recovery USB key

Miscellaneous parts (See “Miscellaneous parts” on page 56.)

Power cord

ac power adapter

Available on some models

X380 Yoga Hardware Maintenance Manual

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

LCD FRUs (for models without infrared camera)
f
9
1

2
8

3
4

Table 6. LCD FRUs
No.

FRU descriptions

CRU ID

LCD panel assembly

Sensor card

Chapter 7. Locations

Table 6. LCD FRUs (continued)
No.

FRU descriptions

CRU ID

Microphone rubbers

Camera/microphone card

Antenna kit

LCD/LED cable assembly

LCD rear-cover assembly

LCD hinges

Strip bezel

Hinge rubbers

Screw caps

X380 Yoga Hardware Maintenance Manual

LCD FRUs (for models with infrared camera)
f
9
1

2
8

Table 7. LCD FRUs
No.

FRU descriptions

CRU ID

LCD panel assembly

Sensor card

Camera/microphone card

Antenna kit

LED cable assembly

Chapter 7. Locations

Table 7. LCD FRUs (continued)
No.

FRU descriptions

CRU ID

LCD rear-cover assembly

LCD cable

LCD hinges

Strip bezel

Hinge rubbers

Screw caps

Miscellaneous parts
Table 8. Miscellaneous parts
FRU descriptions

CRU ID

Screw kit

Geo label kit

Keyboard rubber kit

Connector and cable guide
This section provides information for Lenovo authorized service technicians to help identify connectors and
cables for replacement purpose. To view each FRU and the exploded illustration of the computer, see “Major
FRUs” on page 51 and “LCD FRUs (for models without infrared camera)” on page 53.
Note: Depending on your model, some connectors or cables might not be available.
System board

Item

Connector (location)

Internal cable required

Cable connection

Infrared camera cable
connector (internal)

LCD cable for models
with infrared camera

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

Wireless-LAN card slot
(internal)

Insert the wireless-LAN card into this slot.

Wireless-WAN card connector
(internal)

Insert a wireless-WAN card into this slot.

X380 Yoga Hardware Maintenance Manual

Item

Connector (location)

Internal cable required

Cable connection

Speaker connectors (internal)

Speaker assembly with
cable

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

Thermal fan connector
(internal)

Thermal fan assembly
with cable

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

M.2 SSD slot (internal)

Insert an M.2 SSD into this slot.

eDP cable connector for
models with infrared camera
(internal)

LED cable assembly for
models with infrared
camera

See “2060 LCD cable and LED cable
assembly” on page 94.

eDP and camera cable
connector for models without
infrared camera (internal)

LCD/LED cable assembly
for models without
infrared camera

See “2060 LCD cable and LED cable
assembly” on page 94.

Power connector (external)

Connect the ac power adapter.

USB-C connector (external)

Connect USB-C devices or Thunderbolt 3
devices.

Mini Ethernet connector
(external)

Connect the Ethernet extension adapter to
this connector.

Always On USB 3.1 connector
Gen 1 (external)

Connect USB-compatible devices.

NFC connector (internal)

NFC cable

Connect one end to the NFC card and the
other end to this connector.

Smart-card-reader connector

Smart-card-reader cable

Connect one end to the smart-card reader
and the other end to this connector.

Trackpad connector (internal)

Trackpad cable

Connect one end to the trackpad assembly
and the other end to this connector.

Battery connector (internal)

Battery with cable

The built-in battery comes with a cable.
Connect the cable to this connector.

TrackPoint connector
(internal)

Keyboard bezel assembly
with cables

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

Coin-cell battery connector
(internal)

Coin-cell battery with
cable

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

Keyboard connector (internal)

Keyboard assembly with
cables

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

Fingerprint reader connector
(internal)

Fingerprint-reader cable

Connect one end to the fingerprint reader
card and the other end to this connector.

Power-button-card connector

Power-button-card cable

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

Pen charger connector

Pen charger with cable

The pen charger comes with a cable.
Connect the cable to this connector.

Audio card connector

Audio card cable

Connect one end to the audio card and the
other end to this connector.

Nano-SIM-card slot (external)

Insert a nano SIM card into this slot.

MicroSD card slot (external)

Insert a MicroSD card into this slot.

Chapter 7. Locations

Item

Connector (location)

Internal cable required

Cable connection

USB 3.0 connector (external)

Connect USB-compatible devices.

HDMI connector (external)

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

Audio card
1

Item

Connector (location)

Internal cable required

Cable connection

Audio connector (external)

Connect headphones or a headset to this
connector.

Audio card connector
(internal)

Audio card cable

Connect one end to the system board and
the other end to this connector.

Camera/microphone card
1

Item

Connector (location)

Internal cable required

Cable connection

Camera/LED cable connector
(internal)

LED cable assembly

Connect one end to the sensor card, one end
to the system board, and the other end to
this connector.

NFC card
1

Item

Connector (location)

Internal cable required

Cable connection

NFC antenna connector
(internal)

NFC antenna

Connect the NFC antenna to this connector.

NFC connector (internal)

NFC cable

Connect one end to the system board and
the other end to this connector.

Power button card
2

X380 Yoga Hardware Maintenance Manual

Item

Connector (location)

Internal cable required

Cable connection

Hall sensor connector
(internal)

Hall-sensor-card cable

Connect one end to the hall sensor card and
the other end to this connector.

Power-button-card connector
(internal)

Powe-button-card cable

Connect one end to the system board and
the other end to this connector.

Hall sensor card
1

Item

Connector (location)

Internal cable required

Cable connection

Hall sensor connector

Hall-sensor-card cable

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

Sensor card
1

Item

Connector (location)

Internal cable required

Cable connection

Sensor card connector

LED cable assembly

Connect one end to the camera card, one
end to the system board, and the other end
to this connector.

Looking up FRU information
For detailed FRU information, including part numbers, descriptions, and substitution part numbers, go to:
https://support.lenovo.com/partslookup

Chapter 7. Locations

X380 Yoga Hardware Maintenance Manual

Chapter 8. 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 optionalservice 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 https://support.lenovo.com. 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.

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 https://support.lenovo.com/
partslookup.
• 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.

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

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 topic provides instructions on the following:
• “Restoring the serial number of the system unit” on page 62
• “Retaining the UUID” on page 63

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.
2. Go to https://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 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.

X380 Yoga Hardware Maintenance Manual

2. When the logo screen 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 https://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 8. FRU replacement notices

X380 Yoga Hardware Maintenance Manual

Chapter 9. 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 optionalservice 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 https://
support.lenovo.com. 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 8 “FRU replacement notices” on page 61.
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 illustrations by the numbers
in square callouts.
5. When turning a screw, turn it in the direction as given by the arrow in the illustration.
6. When removing a FRU, move it in the direction as given by the arrow in the illustration.
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,
disable the built-in battery, and then disconnect any interconnecting cables.
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
electrostatic discharge strap.

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

Disabling the built-in battery
Before replacing any FRU/CRU, ensure that you disable Fast Startup first and then disable the built-in
battery.
To disable Fast Startup, do the following:
1. From the desktop, type power option 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.

X380 Yoga Hardware Maintenance Manual

1010 ThinkPad Pen Pro or dummy cap
Removal steps of the ThinkPad Pen Pro or dummy cap

Note: Ensure that you reinstall the ThinkPad Pen Pro or dummy cap after finishing the servicing.

1020 Micro-SIM-card tray (available on some models)
Removal steps of the micro-SIM-card tray

1030 Base cover assembly
For access, remove these FRUs in order:
• “1010 ThinkPad Pen Pro or dummy cap” on page 67
• “1020 Micro-SIM-card tray (available on some models)” on page 67
Removal steps of the base cover assembly
Loosen the screws 1 and remove the base cover assembly 2 .

Chapter 9. Removing or replacing a FRU

Applying labels to the base cover assembly
The following illustration and table show the label areas and what labels are applied in each area.

1 Genuine Microsoft label

2 Serial number label

3 CECP label

4 IMEI label

5 GEO label

6 FCC label

7 BIS logo label

8 Malaysia MCMC label

9 Wireless label for special bid models

10 Asset tag

11 Asset tag

12 Mexico label

13 Indonesia Rating label

14 Israel label

15 Argentina label

16 Argentina CNC label

17 Brazil Anatel label

18 Korea NFC label or Twiwan NFC label

19 ICASA label

X380 Yoga Hardware Maintenance Manual

1040 Battery
For access, remove these FRUs in order:
• “1010 ThinkPad Pen Pro or dummy cap” on page 67
• “1020 Micro-SIM-card tray (available on some models)” on page 67
• “1030 Base cover assembly” on page 67
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.
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 diagnostic 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.
Removal steps of the battery
DANGER
Use only the authorized battery specified for your computer. Any other battery could ignite or
explode.

Step

Screw (quantity)

Color

Torque

M2 × 3 mm, flat-head, nylon-coated (2)

Black

0.181 Nm
(1.85 kgf-cm)

Chapter 9. Removing or replacing a FRU

1050 Hall sensor card
For access, remove these FRUs in order:
• “1010 ThinkPad Pen Pro or dummy cap” on page 67
• “1020 Micro-SIM-card tray (available on some models)” on page 67
• “1030 Base cover assembly” on page 67
Removal steps of the hall sensor card

Step

Screw (quantity)

Color

Torque

M2 × 3 mm, flat-head, nylon-coated (1)

Black

0.181 Nm
(1.85 kgf-cm)

X380 Yoga Hardware Maintenance Manual

1070 M.2 SSD
For access, remove these FRUs in order:
• “1010 ThinkPad Pen Pro or dummy cap” on page 67
• “1020 Micro-SIM-card tray (available on some models)” on page 67
• “1030 Base cover assembly” on page 67
Removal steps of the M.2 SSD
Attention:
• Do not drop the drive or apply any physical shock to it. The drive is sensitive to physical shock. Incorrect
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 computer is operating or is in suspend mode.

Chapter 9. Removing or replacing a FRU

Step

Screw (quantity)

Color

Torque

M2 × 2.5 mm, flat-head, nylon-coated (1)

Black

0.181 Nm
(1.85 kgf-cm)

1080 Coin-cell battery
For access, remove these FRUs in order:
• “1010 ThinkPad Pen Pro or dummy cap” on page 67
• “1020 Micro-SIM-card tray (available on some models)” on page 67
• “1030 Base cover assembly” on page 67
Removal steps of the coin-cell battery

X380 Yoga Hardware Maintenance Manual

When installing: Ensure that the coin-cell battery connector is attached firmly.

1090 Wireless-LAN card
For access, remove these FRUs in order:
• “1010 ThinkPad Pen Pro or dummy cap” on page 67
• “1020 Micro-SIM-card tray (available on some models)” on page 67
• “1030 Base cover assembly” on page 67
Removal steps of the wireless-LAN card

Step

Screw (quantity)

Color

Torque

M2 × 2.5 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
on the card.

1100 Wireless-WAN card (available on some models)
For access, remove these FRUs in order:
• “1010 ThinkPad Pen Pro or dummy cap” on page 67
• “1020 Micro-SIM-card tray (available on some models)” on page 67
• “1030 Base cover assembly” on page 67

Chapter 9. Removing or replacing a FRU

Removal steps of the wireless-WAN card

Step

Screw (quantity)

Color

Torque

M2 × 2.5 mm, flat-head, nylon-coated (1)

Black

0.181 Nm
(1.85 kgf-cm)

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

1110 Audio card
For access, remove these FRUs in order:
• “1010 ThinkPad Pen Pro or dummy cap” on page 67
• “1020 Micro-SIM-card tray (available on some models)” on page 67
• “1030 Base cover assembly” on page 67

X380 Yoga Hardware Maintenance Manual

Removal steps of the audio card

Step

Screw (quantity)

Color

Torque

M2 × 3 mm, flat-head, nylon-coated (1)

Black

0.181 Nm
(1.85 kgf-cm)

1120 Pen holder
For access, remove these FRUs in order:
• “1010 ThinkPad Pen Pro or dummy cap” on page 67
• “1020 Micro-SIM-card tray (available on some models)” on page 67
• “1030 Base cover assembly” on page 67
• “1110 Audio card” on page 74

Chapter 9. Removing or replacing a FRU

Removal steps of the pen holder

Step

Screw (quantity)

Color

Torque

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

Black

0.181 Nm
(1.85 kgf-cm)

1130 Power button card and power-button-card cable
For access, remove these FRUs in order:
• “1010 ThinkPad Pen Pro or dummy cap” on page 67
• “1020 Micro-SIM-card tray (available on some models)” on page 67
• “1030 Base cover assembly” on page 67
• “1110 Audio card” on page 74
• “1120 Pen holder” on page 75

X380 Yoga Hardware Maintenance Manual

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

Step

Screw (quantity)

Color

Torque

M2 × 3 mm, flat-head, nylon-coated (1)

Black

0.181 Nm
(1.85 kgf-cm)

When installing:
Ensure that the power card is attached firmly.

1140 Thermal fan assembly
For access, remove these FRUs in order:
• “1010 ThinkPad Pen Pro or dummy cap” on page 67
• “1020 Micro-SIM-card tray (available on some models)” on page 67
• “1030 Base cover assembly” on page 67
• Disconnect the battery cable. See “1040 Battery” on page 69.

Chapter 9. Removing or replacing a FRU

Removal steps of the thermal fan assembly
Note: Loosen the screws 3 in ascending alphabetical order ( a to d ) as shown.

When installing:
• Always wear fingerstalls when handling the thermal fan assembly. Do not touch or hold any part of the
thermal fan assembly with bare fingers.
• Before you attach the thermal fan assembly to the computer, apply thermal grease, at an amount of 0.2
grams, on the part marked a as shown in the following illustrations. Either too much or too less
application of grease can cause a thermal problem due to imperfect contact with a component.
a

• Do not touch the thermal grease.
• Do not press, touch, or rotate the fan impeller.
• Do not touch the fan inlet hole.

X380 Yoga Hardware Maintenance Manual

• Do not twist or pull the cable of the thermal fan assembly.
• Do not apply pressure on the top and base covers of the thermal fan assembly.
• Do not press the heat pipe. Hold both sides of the heat pipe when you take the thermal fan assembly.
• Do not shake or drop the thermal fan assembly.
• Ensure that the fan connector is attached firmly.
• Replace the thermal fan assembly if you observe the following:
– The cover of the thermal fan assembly is deformed or damaged.
– There is abnormal noise during rotation.

1150 Speaker assembly
For access, remove these FRUs in order:
• “1010 ThinkPad Pen Pro or dummy cap” on page 67
• “1020 Micro-SIM-card tray (available on some models)” on page 67
• “1030 Base cover assembly” on page 67
• Disconnect the battery cable. See “1040 Battery” on page 69.
Removal steps of the speaker assembly

1160 Smart-card reader, smart-card-reader cable, or dummy smart-card
door
For access, remove these FRUs in order:
• “1010 ThinkPad Pen Pro or dummy cap” on page 67
• “1020 Micro-SIM-card tray (available on some models)” on page 67
• “1030 Base cover assembly” on page 67
• “1040 Battery” on page 69

Chapter 9. Removing or replacing a FRU

Removal steps of the smart-card reader and the smart-card-reader cable

Step

Screw (quantity)

Color

Torque

M2 × 2.5 mm, flat-head, nylon-coated (4)

Silver

0.181 Nm
(1.85 kgf-cm)

Removal steps of the dummy smart-card door

1170 NFC card, NFC cable, and NFC antenna
For access, remove these FRUs in order:
• “1010 ThinkPad Pen Pro or dummy cap” on page 67
80

X380 Yoga Hardware Maintenance Manual

•
•
•

“1020 Micro-SIM-card tray (available on some models)” on page 67
“1030 Base cover assembly” on page 67
“1040 Battery” on page 69

Removal steps of the NFC card, NFC cable, and NFC antenna

Chapter 9. Removing or replacing a FRU

1180 Trackpad and trackpad cable
For access, remove these FRUs in order:
• “1010 ThinkPad Pen Pro or dummy cap” on page 67
• “1020 Micro-SIM-card tray (available on some models)” on page 67
• “1030 Base cover assembly” on page 67
• “1040 Battery” on page 69
Removal steps of the trackpad and trackpad cable

X380 Yoga Hardware Maintenance Manual

Step

Screw (quantity)

Color

Torque

M2 × 1.5 mm, flat-head, nylon-coated (4)

Silver

0.181 Nm
(1.85 kgf-cm)

1190 System board
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 0.15 m (6 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.

Chapter 9. Removing or replacing a FRU

For access, remove these FRUs in order:
• “1010 ThinkPad Pen Pro or dummy cap” on page 67
• “1020 Micro-SIM-card tray (available on some models)” on page 67
• “1030 Base cover assembly” on page 67
• “1040 Battery” on page 69
• “1070 M.2 SSD” on page 71
• “1080 Coin-cell battery” on page 72
• “1090 Wireless-LAN card” on page 73
• “1100 Wireless-WAN card (available on some models)” on page 73
Attention: The microprocessor a , which is 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

X380 Yoga Hardware Maintenance Manual

Step

Screw (quantity)

Color

Torque

M2 × 4.5 mm, flat-head, nylon-coated (3)

Silver

0.181 Nm
(1.85 kgf-cm)

M2 × 3 mm, flat-head, nylon-coated (9)

Black

0.181 Nm
(1.85 kgf-cm)

M2.5 × 4 mm, flat-head, nylon-coated (1)

Silver

0.294 Nm
(3.0 kgf-cm)

Chapter 9. Removing or replacing a FRU

When installing: Ensure that all the connectors are attached firmly to the system board.
After the replacement finishes, calibrate the accelerometer using the sensor calibration tool. To download the
sensor calibration tool and the instruction, do the following:
Note: Service account and password are required for downloading the sensor calibration tool and the
instruction.
1. Go to https://support.lenovo.com/us/en/documents/HT103119 and follow the instructions on the screen.
2. Locate the sensor calibration tool and select the corresponding file name to download the sensor
calibration tool or the instruction.

1200 LCD unit
For access, remove these FRUs in order:
• “1010 ThinkPad Pen Pro or dummy cap” on page 67
• “1020 Micro-SIM-card tray (available on some models)” on page 67
• “1030 Base cover assembly” on page 67
• “1040 Battery” on page 69
• “1070 M.2 SSD” on page 71
• “1080 Coin-cell battery” on page 72
• “1090 Wireless-LAN card” on page 73
• “1100 Wireless-WAN card (available on some models)” on page 73
• “1190 System board” on page 83

X380 Yoga Hardware Maintenance Manual

Removal steps of the LCD unit
1

1
2

Step

Screw (quantity)

Color

Torque

M2.5 × 3.5 mm, flat-head, nylon-coated (2)

Black

0.294 Nm
(3.0 kgf-cm)

M2.5 × 4 mm, flat-head, nylon-coated (1)

Silver

0.294 Nm
(3.0 kgf-cm)

Chapter 9. Removing or replacing a FRU

When installing: Ensure that you attach the connectors firmly.
Attention: When you route the cables, ensure that they are not subject to any tension. Tension could cause
the cables to be damaged by the cable guides, or a wire to be broken.

1210 Keyboard assembly
For access, remove these FRUs in order:
• “1010 ThinkPad Pen Pro or dummy cap” on page 67
• “1020 Micro-SIM-card tray (available on some models)” on page 67
• “1030 Base cover assembly” on page 67
• “1040 Battery” on page 69
• “1070 M.2 SSD” on page 71
• “1080 Coin-cell battery” on page 72
• “1090 Wireless-LAN card” on page 73
• “1100 Wireless-WAN card (available on some models)” on page 73
• “1110 Audio card” on page 74
• “1120 Pen holder” on page 75
• “1140 Thermal fan assembly” on page 77
• “1150 Speaker assembly” on page 79
• “1190 System board” on page 83
• “1200 LCD unit” on page 86

X380 Yoga Hardware Maintenance Manual

Removal steps of the keyboard assembly
1

2
2

2
2
2
2

3
2

2
2

Step

Screw (quantity)

Color

Torque

M2 × 2 mm, flat-head, nylon-coated (4)

Black

0.181 Nm
(1.85 kgf-cm)

M2 × 2.5 mm, flat-head, nylon-coated (9)

Silver

0.181 Nm
(1.85 kgf-cm)

2010 Strip bezel
Removal steps of the strip bezel
1

Step
1

Screw Cap

Screw (quantity)

Color

Torque

M2.5 x 4 mm, flat-head, nylon-coated (2)

Silver

0.294 Nm
(3.0 kgf-cm)

Chapter 9. Removing or replacing a FRU

2
2
2
2
2

2020 LCD panel assembly
For access, remove this FRU:
• “1010 ThinkPad Pen Pro or dummy cap” on page 67
• “1020 Micro-SIM-card tray (available on some models)” on page 67
• “1030 Base cover assembly” on page 67
• Disconnect the battery cable. See “1040 Battery” on page 69.
• “2010 Strip bezel” on page 89
Removal steps of the LCD panel assembly
3
3

3
3

1
2

Step

Screw (quantity)

Color

Torque

M2 × 2.5 mm, wafer-head, nylon-coated (4)

Black

0.181 Nm
(1.85 kgf-cm)

X380 Yoga Hardware Maintenance Manual

2030 Camera/microphone card (available on some models)
For access, remove this FRU:
• “1010 ThinkPad Pen Pro or dummy cap” on page 67
• “1020 Micro-SIM-card tray (available on some models)” on page 67
• “1030 Base cover assembly” on page 67
• Disconnect the battery cable. See “1040 Battery” on page 69.
• “2010 Strip bezel” on page 89
Removal steps of the camera/microphone card
1
1

1
1

Step

Screw (quantity)

Color

Torque

M2 × 2.5 mm, flat-head, nylon-coated (4)

Black

0.181 Nm
(1.85 kgf-cm)

Chapter 9. Removing or replacing a FRU

7
5

6
4

When installing: Ensure that the connector is attached firmly.

2040 Sensor card
For access, remove this FRU:
• “1010 ThinkPad Pen Pro or dummy cap” on page 67
• “1020 Micro-SIM-card tray (available on some models)” on page 67
• “1030 Base cover assembly” on page 67
• Disconnect the battery cable. See “1040 Battery” on page 69.
• “2010 Strip bezel” on page 89
Removal steps of the sensor card
1
1

1
1

X380 Yoga Hardware Maintenance Manual

Step

Screw (quantity)

Color

Torque

M2 × 2.5 mm, flat-head, nylon-coated (4)

Black

0.181 Nm
(1.85 kgf-cm)

7
4

7
6

2050 LCD hinges
For access, remove these FRUs in order:
• “1010 ThinkPad Pen Pro or dummy cap” on page 67
• “1020 Micro-SIM-card tray (available on some models)” on page 67
• “1030 Base cover assembly” on page 67
• Disconnect the battery cable. See “1040 Battery” on page 69.
• “1200 LCD unit” on page 86
• “2010 Strip bezel” on page 89
• “2020 LCD panel assembly” on page 90

Chapter 9. Removing or replacing a FRU

Removal steps of the LCD hinges
2

3
1

Step

Screw (quantity)

Color

Torque

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

Black

0.294 Nm
(3.0 kgf-cm)

2060 LCD cable and LED cable assembly
For access, remove these FRUs in order:
• “1010 ThinkPad Pen Pro or dummy cap” on page 67
• “1020 Micro-SIM-card tray (available on some models)” on page 67
• “1030 Base cover assembly” on page 67
• “1200 LCD unit” on page 86
• “2010 Strip bezel” on page 89
• “2020 LCD panel assembly” on page 90
Removal steps of the LCD cable and LED cable assembly — for models with infrared camera

X380 Yoga Hardware Maintenance Manual

Removal steps of the LCD cable and LED cable assembly — for models without infrared camera
7

2070 Wireless kit
For access, remove these FRUs in order:
• “1010 ThinkPad Pen Pro or dummy cap” on page 67
• “1020 Micro-SIM-card tray (available on some models)” on page 67
• “1030 Base cover assembly” on page 67
• “1200 LCD unit” on page 86
• “2010 Strip bezel” on page 89
• “2020 LCD panel assembly” on page 90

Chapter 9. Removing or replacing a FRU

Removal steps of the wireless-LAN antenna kit
1

2
2
2

2
2

Removal steps of the wireless-WAN antenna kit (available on some models)
2
1

1
1

2
2

2
2
2

2
2

X380 Yoga Hardware Maintenance Manual

3
3
3

When installing:
When you install the antenna kit, route the cables as shown in the following illustrations.
Attention: When you route the cables, ensure that they are not subject to any tension. Tension could cause
the cables to be damaged by the cable guides, or a wire to be broken.
For models with both wireless-WAN and wireless-LAN:
a
b

a Wireless-WAN auxiliary antenna (blue)

b Wireless-LAN auxiliary antenna (black)

c Wireless-WAN main antenna (red)

d Wireless-LAN main antenna (gray)

For models with wireless-LAN only:

Chapter 9. Removing or replacing a FRU

a Wireless-LAN auxiliary antenna (black)

X380 Yoga Hardware Maintenance Manual

b Wireless-LAN main antenna (gray)

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 on 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. Lenovo may
make improvements and/or changes in the product(s) and/or the program(s) described in this publication at
any time without notice.
The products described in this document are not intended for use in implantation or other life support
applications where malfunction may result in injury or death to persons. The information contained in this
document does not affect or change Lenovo product specifications or warranties. Nothing in this document
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.
Lenovo may use or distribute any of the information you supply in any way it believes appropriate without
incurring any obligation to you.
Any references in this publication to non-Lenovo Web sites are provided for convenience only and do not in
any manner serve as an endorsement of those Web sites. The materials at those Web sites are not part of 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.

Electronic emissions notices
For electronic emission information on Class B digital devices, refer to the corresponding information in the
User Guide.
EU contact: Lenovo, Einsteinova 21, 851 01 Bratislava, Slovakia

Trademarks
The following terms are trademarks of Lenovo in the United States, other countries or both:
Lenovo
Lenovo logo
ThinkPad
ThinkPad logo
TrackPoint
Yoga
Intel and Thunderbolt are trademarks of Intel Corporation or its subsidiaries in the U.S. and/or other
countries.
Microsoft, Windows, Windows Server, and Cortana are trademarks of the Microsoft group of companies.
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, Wi-Fi Alliance, and Miracast are registered trademarks of Wi-Fi Alliance.
USB-C is a trademark of USB Implementers Forum.
Other company, product, or service names may be the trademarks or service marks of others.

100

X380 Yoga Hardware Maintenance Manual

Part Number: SP40P03566

Printed in

(1P) P/N: SP40P03566

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