Broadcom BRCM1050I 802.11g/DRAFT 802.11n WIRELESS LAN PCI-E MINICARD User Manual

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Lenovo IdeaPad

U310/U410

Read the safety notices and important tips in the

included manuals before using your computer.

User Guide V1.0

The illustrations in this manual may differ from the actual product.

Please refer to the actual product.

•

First Edition (March 2011)

To refer to it, go to http://consumersupport.lenovo.com/ and click

User guides and manuals.

Regulatory Notice

•

Before using the product, be sure to read Lenovo Safety and General

Information Guide first.

The features described in this guide are common to most models.

Some features may not be available on your computer and/or your

computer may include features that are not described in this user

guide.

Some instructions in this guide may assume that you are using

Windows® 7. If you are using other Windows operating system, some

operations may be slightly different. If you are using other operating

systems, some operations may not apply to you.

LENOVO products, data, computer software, and services have been developed exclusively at private

expense and are sold to governmental entities as commercial items as defined by 48 C.F.R. 2.101 with

limited and restricted rights to use, reproduction and disclosure. LIMITED AND RESTRICTED

RIGHTS NOTICE: If products, data, computer software, or services are delivered pursuant a General

Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set

forth in Contract No. GS-35F-05925.

Notes

•

Chapter 1. Getting to know your

computer................................... 1

Top view..........................................1

Left-side view .................................4

Right-side view...............................5

Front view .......................................7

Bottom view ....................................8

Chapter 2. Learning the

basics...................................... 10

First use..........................................10

Using AC adapter and battery ...12

Connecting external devices.......14

Securing your computer..............16

Switchable Graphics in two modes

(on select models).........................17

Chapter 3. Connecting to the

Internet ....................................19

Wired connection......................... 19

Wireless connection..................... 21

Chapter 4. OneKey Rescue

system.....................................23

OneKey Rescue system ............... 23

Chapter 5. Troubleshooting...26

Frequently asked questions........ 26

Troubleshooting........................... 28

Specifications.........................32

Trademarks.............................34

Contents

Chapter 1. Getting to know your computer

Top view - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

U310

Chapter 1. Getting to know your computer

U410

Note: The illustrations in this manual may differ from the actual product. Please refer to the

actual product.

Attention:

•Do NOT open the display panel beyond 130 degrees. When closing the display panel, be

careful NOT to leave pens or any other objects in between the display panel and the

keyboard. Otherwise, the display panel may be damaged.



Chapter 1. Getting to know your computer

Integrated

camera

Use the camera for video communication.

Wireless module

antennas

The built-in antennas ensure optimal reception of wireless

radio.

Computer display The LCD display with LED backlight provides brilliant

visual output.

Power button Press this button to turn on the computer.

System status

indicators

For details, see “System status indicators” on page 18.

Touchpad The touchpad functions as a conventional mouse.

Note: For details, see “Using the touchpad” on page 11.

Speakers The stereo speakers provide rich and powerful sound.

Chapter 1. Getting to know your computer

Left-side view - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

U310

U410

OneKey Rescue

system button

Press this button to open OneKey Rescue system when

the computer is powered off.

Note: For details, see “OneKey Rescue system” on page 23.

Fan louvers

Dissipate internal heat.

Note: Make sure that none of the fan louvers are blocked or else overheating of the

computer may occur.

RJ-45 port

This port connects the computer to an Ethernet network.

Note: For details, see “Wired connection” on page 19.

HDMI port Connects to devices with HDMI input such as a TV or a

display.

USB 2.0 port Connect to USB devices.

Note: For details, see “Connecting USB devices” on page 15.

Combo audio

jack

Connects to headphones or headsets. The combo audio

jack does not support conventional microphones.

1 3 4 52

1 52 6

Chapter 1. Getting to know your computer

Right-side view - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

U310

U410

Built-in

microphone

The built-in microphone (with noise reduction) can be

used for video conferencing, voice narration, or simple

audio recordings.

Combo audio

jack

Connects to headphones or headsets. The combo audio

jack does not support conventional microphones.

USB 3.0 port Connects to USB devices.

Note: For details, see “Connecting USB devices” on page 15.

AC power adapter

jack

Connect the AC adapter here.

Note: For details, see “Using AC adapter and battery” on page 12.

Memory card slot

Insert memory cards (not supplied) here.

Note: For details, see “Using memory cards (not supplied)” on page 14.

HDMI port Connects to devices with HDMI input such as a TV or a

display.

2 3

1 3 6 7 45

Chapter 1. Getting to know your computer

RJ-45 port

This port connects the computer to an Ethernet network.

Note: For details, see “Wired connection” on page 19.

Chapter 1. Getting to know your computer

Front view - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

U310

U410

Memory card slot

Insert memory cards (not supplied) here.

Note: For details, see “Using memory cards (not supplied)” on page 14.

System status

indicators

For details, see “System status indicators” on page 18.

Chapter 1. Getting to know your computer

Bottom view - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

U310

Chapter 1. Getting to know your computer

U410

Air inlet louvers

Make outside air go inside the computer through the

louvers.

Chapter 2. Learning the basics

First use

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Reading the manuals

Read the supplied manuals before using your computer.

Conncting to the power

The supplied battery pack is not fully charged at purchase.

To charge the battery and begin using your computer, insert the battery pack

and connect the computer to an electrical outlet. The battery is automatically

charged while the computer is running on AC power.

Installing the battery pack

Refer to the supplied Setup Poster to install the battery pack.

Connecting the computer to an electrical outlet

Connect the power cord to the AC adapter.

Connect the AC adapter to the AC power adapter jack of the computer

firmly.

Plug the power cord into an electrical outlet.

Turning on the computer

Press the power button to turn on the computer.

Configuring the operating system

You may need to configure the operating system when it is first used. The

configuration process may include the procedures below.

• Accepting the end user license agreement

• Configuring the Internet connection

• Registering the operating system

• Creating a user account

Chapter 2. Learning the basics

Putting your computer into sleep state or shutting it down

When you finish working with your computer, you can put it into sleep state

or shut it down.

Putting your computer into sleep state

If you will be away from your computer for only a short time, put the

computer into sleep state.

When the computer is in sleep state, you can quickly wake it to resume use,

and bypass the startup process.

To put the computer into sleep state, do one of the following.

• Click and select Sleep from the Start menu.

• Press Fn + F1.

To wake the computer, do one of the following.

• Press the power button.

• Press any key on the keyboard.

Shutting down your computer

If you are not going to use your computer for a day or two, shut it down.

To shut down your computer, click and select Shut down from the Start

menu.

Note: Wait until the power indicator light starts blinking (indicating that the computer is in

sleep state) before you move your computer. Moving your computer while the hard

disk is spinning can damage the hard disk, causing loss of data.

Chapter 2. Learning the basics

Using AC adapter and battery

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Checking battery status

You can determine the percentage of battery power remaining by checking

the battery icon in the notification area.

Charging the battery

When you find that the battery power is low, you need to charge the battery

or replace it with a fully charged one.

You need to charge the battery in any of the following situations:

• When you purchase a new battery

• If the battery status indicator starts blinking

• If the battery has not been used for a long time

Note: As each computer user has different habits and needs, it is difficult to predict how

long a battery charge will last. There are two main factors:

• The amount of energy stored in the battery when you commence work.

• The way you use your computer: for example, how often you access the hard

disk drive and how bright you make the computer display.

Notes:

•You are advised to insert the battery pack when using your computer to prevent small

particles from entering the inside of your computer.

•To increase the life of the battery pack, the computer does not start recharging the

battery immediately after it drops from fully charged.

•Charge the battery at a temperature between 50 °F and 86 °F (10 °C-30 °C).

•Full charge or discharge is not required.

Chapter 2. Learning the basics

Handling the battery

If the rechargeable battery pack is replaced with an incorrect type, there may

be danger of an explosion. The battery pack contains a small amount of

harmful substances. To avoid possible injury and detriment to the

environment, pay attention to the following points:

• Replace only with a battery of the type recommended by Lenovo.

• Keep the battery pack away from fire.

• Do not expose the battery pack to water or rain.

• Do not attempt to disassemble the battery pack.

• Do not short-circuit the battery pack.

• Keep the battery pack away from children.

• Do not put the battery pack in trash that is disposed of in landfills. When

disposing of the battery, comply with local ordinances or regulations and

your company’s safety standards.

Chapter 2. Learning the basics

Connecting external devices

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Your computer has a wide range of built-in features and connection

capabilities.

Using memory cards (not supplied)

Your computer supports the following types of memory cards:

• Secure Digital (SD) card

• MultiMediaCard (MMC)

Inserting a memory card

Push the dummy card until you hear a click. Gently pull the dummy card

out of the memory card slot.

Slide the memory card in until it clicks into place.

Removing a memory card

Push the memory card until you hear a click.

Gently pull the memory card out of the memory card slot.

Notes:

•Insert ONLY one card in the slot at a time.

•This card reader does not support SDIO devices (e.g., SDIO Bluetooth, etc.).

Note: The dummy card is used for preventing dust and small particles from entering the

inside of your computer when the memory card slot is not in use. Retain the dummy

card for future use.

Note: Before removing the memory card, disable it via Windows safely remove hardware

and eject media utility to avoid data corruption.

Chapter 2. Learning the basics

Connecting USB devices

You can connect a USB device to your computer by inserting its USB plug

(Type A) into the USB port on your computer.

The first time you plug a USB device into a particular USB port on your

computer, Windows automatically installs a driver for that device. After the

driver is installed, you can disconnect and reconnect the device without

performing any additional steps.

Before disconnecting a USB storage device, make sure your computer has

finished transferring data by that device. Click the Safely Remove Hardware

icon in the notification area of Windows to remove the device before

disconnecting.

Note: Typically, Windows detects a new device after connecting it, and then installs the

driver automatically. However, some devices may require you to install the driver

before connecting. Check the documentation provided by the device’s manufacturer

before connecting the device.

Note: If your USB device uses a power cord, connect the device to a power source before

connecting it. Otherwise, the device may not be recognized.

Chapter 2. Learning the basics

Securing your computer

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

This section provides information about how to help protect your computer

from theft and unauthorized use.

Attaching a security lock (not supplied)

You can attach a security lock to your computer to help prevent it from being

removed without your permission. For details on installing the security lock,

please refer to the instructions shipped with the security lock that you have

purchased.

Refer to the “Left-side view” on page 4 for the location of the Kensington

slot.

Using VeriFace™

VeriFace is a face recognition software which takes a digital snapshot,

extracts key features of your face, and creates a digital map that becomes the

system’s “password”.

If you want to activate VeriFace for the first time, click the VeriFace icon on

the desktop to register your facial image.

For more details on VeriFace, see the software help.

Notes:

•Before purchasing any security product, verify that it is compatible with this type of

security keyhole.

•You are responsible for evaluating, selecting, and implementing the locking devices and

security features. Lenovo offers no comment judgement or warranty regarding the

function, quality or performance of locking devices and security features.

Notes:

•The face registration and verification works best in an environment with steady and even

light.

•You can determine whether to use this function when you log on the system.

Chapter 2. Learning the basics

Using passwords

Using passwords helps prevent your computer from being used by others.

Once you set a password and enable it, a prompt appears on the screen each

time you power on the computer. Enter your password at the prompt. The

computer cannot be used unless you enter the correct password.

For details about how to set the password, see the Help to the right of the

screen in BIOS setup utility.

Switchable Graphics in two modes

(

on select models

)

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

The Lenovo G-series model supports Switchable Graphics in two modes:

Mode 1 Select the graphics processor based on application needs

In this mode, the system allocates a graphics processor to some applications

automatically. Alternatively, you can also manually select a graphics

processor for your applications.

The default setting of your computer is Mode 1. To switch to Mode 2, please

refer to “Switching between Mode 1 and Mode 2”.

Mode 2 Select the graphics processor manually or based on power

source

In this mode, you can select a graphics processor manually or based on the

power source status (AC/DC):

•High-performance GPU: It is also referred to as the independent GPU,

which can provide higher graphics processing and display performance.

•Power-Saving GPU: It is also referred to as the integrated GPU, which can

enable a longer running time of the battery.

Switch between the two graphics processors as follows:

Start your computer under the Windows 7 operating system.

Click Start oAll Programs oCatalyst Control Center, and run the CCC.

Click Power oSwitchable Graphics on the Catalyst Control Center

setting page.

Note: This password can be from one to seven alphanumeric characters in any combination.

Note: To enter BIOS setup utility, press F2 when the Lenovo logo appears on the screen while

the computer is starting up.

Chapter 2. Learning the basics

On the Switchable Graphics page, the currently active GPU is displayed

under the current active graphics processing unit. You can click

High-performance GPU or Power-Saving GPU under Choose a

Graphics Processing Unit to switch the graphics processor.

Switching between Mode 1 and Mode 2

Switch between the two modes as follows:

Start your computer under the Windows 7 operating system.

Click Start oAll Programs oCatalyst Control Center, and run the CCC.

On the Catalyst Control Center setting page, click Power oSwitchable

Graphics Method, choose Select the graphics processor manually or

based on power source, and click Apply.

On the Switchable Graphics dialog box that appears, click Change to

switch between the two modes.

On the contrary, you can switch back to Mode 1 from Mode 2.

Note: It may take several seconds to switch between Mode 1 and Mode 2.

Prior to switching between the two modes or manual switching between the two

GPUs, it is recommended that you close any running applications.

Under the Windows XP or Windows Vista operating system, none of the

configurations supports switching between graphics processors, and they can work

only under the mode of integrated GPU.

Chapter 3. Connecting to the Internet

As a global network, the Internet connects computers worldwide, providing

services such as e-mailing, information searching, electronic commerce, Web

browsing and entertainment.

You can connect the computer to the Internet in the following ways:

Wired connection: use physical wiring to connect.

Wireless network technology: connect without wiring.

Wired connection - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Wired connections are a reliable and safe way to connect the computer to the

Internet.

Cable Cable Internet services use a cable modem connected to

the residential cable TV line.

DSL DSL is a family of related technologies that bring high-

speed network access to homes and small businesses

over ordinary telephone lines.

Chapter 3. Connecting to the Internet

Hardware connection:

Cable DSL

Software configuration

Consult your Internet Service Provider (ISP) for details on how to configure

your computer.

Note: The above diagrams are for reference only. Actual connection method may vary.

TV cable

Splitter *

Cable modem *

* Not supplied.

Telephone line

Splitter *

DSL modem *

Chapter 3. Connecting to the Internet

Wireless connection - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Wireless connections provide mobile access to the Internet, allowing you to

stay online anywhere the wireless signal covers.

Divided by the signal scales, wireless connection to the Internet can be built

based on the following standards.

Wi-Fi Wi-Fi networks cover a small physical area, like a home,

office, or small group of buildings. An access point is

necessary for the connection.

WiMAX WiMAX networks connect several Wireless LAN

systems to cover a metropolitan area, providing high-

speed broadband access without the need for cables.

Note: Your computer may not support all wireless connection methods.

Chapter 3. Connecting to the Internet

Using Wi-Fi/WiMAX (on select models)

Enabling wireless connection

To enable wireless communications, do the following:

Slide the integrated wireless device switch from to .

Press Fn + F5 to make configuration.

Hardware connection

Software configuration

Consult your Internet Service Provider (ISP) and search Windows Help and

Support Center for details on how to configure your computer.

Access point *

Wi-Fi/WiMAX network

* Not supplied

Chapter 4. OneKey Rescue system

OneKey Rescue system

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Introduction

The Lenovo OneKey Rescue system is an easy-to-use application that can be

used to back up the data on your system partition (C drive) for easy restore

when required. You can run Lenovo OneKey Recovery under the Windows

operating system, and the OneKey Rescue system without starting the

Windows operating system.

Attention:

In order to utilize the features of the OneKey Rescue system, your hard disk

already includes a hidden partition by default to store the system image file

and OneKey Rescue system program files. This default partition is hidden

for security reasons and is the reason the available disk space is less than it

claims. The exact available hard disk space depends on the file size of the

mirror image file (based on the size of operating system and preinstalled

software).

Using Lenovo OneKey Recovery (within Windows operating

system)

In Windows operating system, double click the OneKey Recovery system

Icon on the desktop to launch Lenovo OneKey Recovery.

Within the program, you can back up the system partition on the hard disk

drive, other storage devices, or by creating recovery discs.

For more instructions, see the Help file of Lenovo OneKey Recovery.

Notes:

•The backup process and creation of recovery discs may take some time, connect the AC

adapter and battery pack to your computer.

•After the recovery discs are burned, please number them so that you can use them in the

correct order.

•Computers without an integrated optical drive support the creation of recovery discs;

however an appropriate external optical drive is needed to physically create the recovery

discs.



Chapter 4. OneKey Rescue system

Using Lenovo OneKey Rescue system (without Windows

operating system)

In the event that the operating system cannot be loaded, follow the steps

below to access OneKey Rescue system.

• Shut down your computer.

• Press the key to launch OneKey Rescue system.

Within the program, you can choose to restore your system partition to the

original factory status, or to a previously generated backup.

Creating a recovery disc(s)

Your computer does not ship with a recovery disc. You can use Lenovo

OneKey Recovery system to create a recovery disc(s), which can be used to

start and restore your computer in case of a system failure.

To create a recovery disc(s):

• Insert a recordable disc into the optical drive on your computer.

• In Windows, press the OneKey Rescue system button to launch Lenovo

OneKey Recovery system.

• On the main screen, click Create Recovery Disc.

• Choose the type of recovery disc(s). You can create three types of recovery

disc(s): recovery disc(s) with existing backup image, recovery disc(s) from

the current system partition, and factory default recovery disc(s). Select the

type of recovery disc you want to create and follow the on-screen

instructions.

• Insert additional recordable disc(s) when prompted.

Note: The recovery process is irreversible. Make sure to back up any critical data before

using the recovery feature.

Note: If your computer does not come with an integrated optical drive or if the integrated

optical drive does not support disc creating, connect an appropriate external optical

drive to your computer.

Chapter 4. OneKey Rescue system

Notes:

•The estimated number of discs needed will be displayed before the process of creating the

recovery disc(s) begins. To minimize the number of discs needed, use recordable DVDs as

the media. Also make sure your optical drive is compatible with the disc intended for use.

•After recovery disc creation, number the discs appropriately for use in their correct

order. The first disc created will be used to start the computer in the case of a system

failure.

Chapter 5. Troubleshooting

Frequently asked questions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

This section lists frequently asked questions and tells where you can find

detailed answers.

What safety precautions should I follow when using my computer?

See “Chapter 1. Important safety information” of Lenovo Safety and General

Information Guide.

How can I prevent problems with my computer?

See “Chapter 2. Use and care Information” of Lenovo Safety and General

Information Guide.

What are the main hardware features of my computer?

More information can be found in Chapter 1 and 2.

Where can I find the detailed specifications for my computer?

See http://consumersupport.lenovo.com.

I need to upgrade a device or I need to replace one of the following: the hard

disk drive, memory, or the keyboard.

See “Appendix A. CRU instructions” on page 35 of this guide.

Where are the recovery discs?

Your computer did not come with a recovery disc. For an explanation of

the alternative recovery methods offered by Lenovo, see “Chapter 4.

OneKey Rescue system” on page 23.

Where are the installation discs for preinstalled programs?

Installation discs for preinstalled programs are not supplied with Windows

preinstalled computers. You can visit the Lenovo consumer support Web

site to find all preinstalled software downloads.

By default, you can find some installation backups for certain preinstalled

software in the APP folder under the D driver.

How can I contact the customer support center?

See " Chapter 3. Getting help and service" of Lenovo Safety and General

Information Guide.

Chapter 5. Troubleshooting

Where can I find warranty information?

For the warranty applicable to your computer, including the warranty

period and type of warranty service, see the Lenovo limited warranty flyer

that came with your computer.

How can I install the device drivers?

A compatible device driver is a requirement to ensure correct operation

and performance of each component in your computer. If your computer is

pre-installed with an operating system, Lenovo provides all drivers that

you need in your hard disk.

What can I do if the backup process fails?

If you can start the backup feature without a problem, but it fails during

the backup process, please try the following steps:

Close other programs, then restart the backup process.

Check if the destination media is damaged, try to select another path

and then try again.

When do I need to restore the system to the factory status?

You can use this feature when your system fails or you need to re-install

your operating system. This will restore your computer back to the initial

status when you first booted up your computer after receiving it from the

store. If there is critical data on your current partition, back it up before you

run this recovery feature.

Chapter 5. Troubleshooting

Troubleshooting - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

If you do not find your problem here, see Chapter 2. The following section only

describes problems that might negate the need to refer to the more

comprehensive information in Chapter 2.

Display problems

When I turn on the computer,

nothing appears on the screen.

•If the screen is blank, make sure that:

- The battery is installed correctly.

- The AC adapter is connected to the computer and the

power cord is plugged into a working electrical outlet.

- The computer power is on. (Press the power button again

for confirmation.)

- The memory is installed correctly.

•If these items are properly set, and the screen remains blank,

have the computer serviced.

When I turn on the computer,

only a white cursor appears on

a blank screen.

•Restore backed-up files to your Windows environment or

the entire contents of your hard disk to the original factory

contents using OneKey Rescue system. If you still see only

the cursor on the screen, have the computer serviced.

My screen goes blank while the

computer is on.

•Your screen saver or power management may be enabled.

Do one of the following to exit from the screen saver or to

resume from sleep or hibernation mode:

- Touch the touchpad.

- Press any key on the keyboard.

- Press the power button.

- Press Fn + F2 to confirm whether the backlight for the

LCD screen has been turned off.

Chapter 5. Troubleshooting

Password problems

I forgot my password. •If you forget your user password, you must take your

computer to a Lenovo authorized servicer or a marketing

representative to have the password changed.

•If you forget your HDD password, a Lenovo authorized

servicer cannot reset your password or recover data from

the hard disk. You must take your computer to a Lenovo

authorized servicer or a marketing representative to have

the hard disk drive replaced. Proof of purchase is required,

and a fee will be charged for parts and service.

•If you forget your supervisor password, a Lenovo

authorized servicer cannot reset your password. You must

take your computer to a Lenovo authorized servicer or a

marketing representative to have the system board

replaced. Proof of purchase is required, and a fee will be

charged for parts and service.

Sleep or hibernation problems

The critical low-battery error

message appears, and the

computer immediately turns off.

•The battery power is getting low. Connect the AC adapter to

the computer, or replace the battery with a fully charged

one.

The computer enters sleep

mode immediately after Power-

on self-test (POST).

•Make sure that:

- The battery is charged.

- The operating temperature is within the acceptable range.

See “Chapter 2. Use and care Information” of Lenovo Safety

and General Information Guide.

Note:If the battery is charged and the temperature is within range, have the computer serviced.

The computer does not return

from sleep mode and the com-

puter does not work.

•If the computer does not return from sleep mode, it may

have entered hibernation mode automatically because the

battery is depleted. Check the power indicator.

•If your computer is in sleep mode, connect the AC adapter

to the computer, then press any key or the power button.

•If your computer is in hibernation mode or power-off state,

connect the AC adapter to the computer, then press the

power button to resume operation.

Note:

If the system still does not return from sleep mode, your system has stopped responding, and

you cannot turn off the computer; reset the computer. Unsaved data may be lost. To reset the

computer, press and hold the power button for 4 seconds or more. If the computer is still not

reset, remove the AC adapter and the battery.

Chapter 5. Troubleshooting

Computer screen problems

The screen is blank. •Do the following:

- If you are using the AC adapter, or using the battery, and

the battery status indicator is on, press Fn + n to make the

screen brighter.

- If the power indicator is in blinking, press the power

button to resume from the sleep mode.

- If the problem persist, follow the solution in the following

problem “The screen is unreadable or distorted.”

- Press Fn + F2 to confirm whether the LCD screen has been

turned off.

The screen is unreadable or

distorted.

•Make sure that:

- The display device driver is installed correctly.

- The screen resolution and color quality are correctly set.

- The monitor type is correct.

Incorrect characters appear on

the screen.

•Did you install the operating system or programs correctly?

If they are installed and configured correctly, have the

computer serviced.

Sound problems

No sound can be heard from

the speaker even when the vol-

ume is turned up.

•Make sure that:

- The Mute function is off.

- The headphone jack is not used.

- Speakers are selected as the playback device.

Battery problems

Your computer shuts down

before the battery status indica-

tor shows empty.

-or-

Your computer operates after

the battery status indicator

shows empty.

•Discharge and recharge the battery.

The computer does not operate

with a fully charged battery.

•The surge protector in the battery might be active. Turn off

the computer for one minute to reset the protector; then turn

on the computer again.

A hard disk drive problem

The hard disk drive does not

work.

•In the Boot menu in BIOS setup utility, make sure that the

hard disk drive is included in the Boot Device Priority

correctly.

Chapter 5. Troubleshooting

A startup problem

The Microsoft® Windows oper-

ating system does not start.

•Use the OneKey Rescue system to help solve or identify

your problem. For details about OneKey Rescue system, see

“Chapter 4. OneKey Rescue system” on page 23.

OneKey Rescue system problems

Backup cannot be made. •You are not currently using a Windows operating system.

•There is not enough space to store the backed up data. You

will need to free more hard disk space on your system

partition (C drive).

Fail to restore system partition

to factory default.

•The system partition, such as the partition size or the drive

capacity of C, has been modified.

Broadcom BRCM1050I 802.11g/DRAFT 802.11n WIRELESS LAN PCI-E MINICARD User Manual

Broadcom Corporation 802.11g/DRAFT 802.11n WIRELESS LAN PCI-E MINICARD

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