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Chapter 6. Recovery overview

This chapter provides information about the recovery solutions for your computer.

“Using the OneKey Recovery Pro program on the Windows 7 operating system” on page 27

“Using the Windows recovery program on the Windows 8 operating system” on page 28

Using the OneKey Recovery Pro program on the Windows 7 operating system

On the Windows 7 operating system, the OneKey® Recovery Pro program enables you to do the following:

Performing backup and recovery operations

The OneKey Recovery Pro program enables you to back up all your hard disk drive contents including the operating system, data files, software programs, and personal settings. You can designate where the OneKey Recovery Pro program stores the backup.

Using the OneKey Recovery Pro workspace

The OneKey Recovery Pro workspace resides in a protected, hidden area of your hard disk drive that operates independently from the Windows operating system. This enables you to perform recovery operations even if you cannot start the Windows operating system. You can perform the following recovery operations from the OneKey Recovery Pro workspace.

Creating and using a rescue medium

With a rescue medium, such as a disc or a USB hard disk drive, you can recover the computer from failures that prevent you from gaining access to the OneKey Recovery Pro workspace on your hard disk drive.

For more information, refer to the help information system of the OneKey Recovery Pro program.

Solving recovery problems on the Windows 7 operating system

To reinstall the Windows 7 operating system, do the following:

1.Turn off the computer.

2.Do one of the following:

Press the recovery button and then follow the on-screeninstructions to launch the Product Recovery program.

Start the computer. When the Lenovo logo is displayed, press the recovery button and then follow the on-screeninstructions to start the Product Recovery program.

Start the computer. After you have entered the Windows operating system, press the recovery button to launch the Lenovo Solution Center program.

3.Follow the on-screeninstructions to reinstall the operating system.

Notes:

You can choose to restore your system partition to the original factory state or to a previously generated backup.

The recovery process is irreversible. Ensure that you have backed up your critical data before using the recovery feature.

If you are unable to access the OneKey Recovery Pro workspace or the Windows environment, do either of the following:

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Use a rescue medium to start the OneKey Recovery Pro workspace.

Use recovery media if all other methods of recovery have failed and you need to restore the hard disk drive to the factory default settings.

Note: If you are unable to access the OneKey Recovery Pro workspace or the Windows environment from a rescue medium or recovery medium, you might not have the rescue device (an internal hard disk drive, a disc, a USB hard disk drive, or other external devices) set as the first boot device in the startup device sequence. You must first make sure that your rescue device is set as the first boot device in the startup device sequence in the BIOS program. Go to theStartup Boot menu to temporarily or permanently change the startup device sequence.

It is important to create a rescue medium and a set of recovery media as early as possible and store them in a safe place for future use.

Using the Windows recovery program on the Windows 8 operating system

Your computer come with a built-inrecovery program provided by Windows. On the Windows 8 operating system, the program enables you to do the following:

Refreshing your computer settings

The refreshing enables you to restore your computer settings to factory contents only, without removing all the personal data and applications that you have installed from Windows Store.

To refresh your computer settings, do the following:

1.Move your cursor to the bottom right corner of the screen to bring up the charms. Then click Settings

Change PC settings General.

2.In the Refresh your PC without affecting your filessection, click Get started. Then follow the on-screen instructions to refresh your computer settings.

Resetting your computer settings

When you use the recovery program to reset your computer settings, all the data you have stored on the hard disk drive will be deleted and the computer settings will be restored to the factory default settings.

Attention: To avoid data loss, back up all the date that will be in use later. To reset your computer settings, do the following:

1.Move your cursor to the bottom right corner of the screen to bring up the charms. Then click Settings

Change PC settings General.

2.In the Remove everything and reinstall Windowssection, click Get started. Then follow the on-screen instructions to reset your computer settings.

Note: After restoring your computer settings to the factory contents, you might need to reinstall the drivers for some devices.

Advanced startup options

Advanced startup options enable you to start up from an external drive or disc, change your computer settings, change the startup settings of the Windows operating system, or restore the Windows operating system from a system image.

To use the advanced startup option, do the following:

1.Move your cursor to the bottom right corner of the screen to bring up the charms. Then click Settings

Change PC settings General.

2.In the Advanced startupsection, click Restart now Troubleshoot Advanced options. Then follow the on-screen instructions to change the settings as desired.

28 User Guide

For more information about the recovery solutions provided on your computer, refer to the online help information system of the Windows 8 operating system.

Chapter 6. Recovery overview29

30 User Guide

Chapter 7. Replacing devices

This chapter provides instructions on how to install or replace hardware for your computer.

“Static electricity prevention” on page 31

“Replacing the battery” on page 31

“Replacing the backup battery” on page 32

“Replacing the hard disk drive” on page 34

“Replacing a memory module” on page 35

“Replacing the PCI Express Mini Card for wireless LAN/WiMAX connection” on page 37

“Removing the optical drive” on page 38

Static electricity prevention

Static electricity, although harmless to you, can seriously damage computer components and options. Improper handling of static-sensitiveparts can cause damage to the part. When you unpack an option or CRU, do not open thestatic-protectivepackage containing the part until the instructions direct you to install it.

When you handle options or CRUs, or perform any work inside the computer, take the following precautions to avoid static-electricitydamage:

Limit your movement. Movement can cause static electricity to build up around you.

Always handle components carefully. Handle adapters, memory modules, and other circuit boards by the edges. Never touch exposed circuitry.

Prevent others from touching components.

When you install a static-sensitiveoption or CRU, touch thestatic-protectivepackage containing the part to a metalexpansion-slotcover or other unpainted metal surface on the computer for at least two seconds. This reduces static electricity from the package and your body.

When possible, remove the static-sensitivepart from thestatic-protectivepackaging and install the part without setting it down. When this is not possible, place thestatic-protectivepackaging on a smooth, level surface and place the part on it.

Do not place the part on the computer cover or other metal surface.

Replacing the battery

Before you start, print these instructions.

Note: Your computer might look different from the illustrations in this topic.

Note: This system does not support batteries that are not genuineLenovo-madeor 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.

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Prerequisites for the procedure

DANGER

If the rechargeable battery pack is incorrectly replaced, there is danger of an explosion. The battery pack contains a small amount of harmful substances. To avoid possible injury:

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

Keep the battery pack away from fire.

Do not expose it to excessive heat.

Do not expose it to water or rain.

Do not short-circuitit.

Do not drop, crush, puncture, or subject to strong forces. Battery abuse or mishandling can cause the battery to overheat, which can cause gasses or flame to “vent” from the battery pack or coin cell.

To replace the battery, do the following:

1.Turn off the computer; then disconnect the ac power adapter and all cables from the computer. Wait three to five minutes to let the computer cool.

2.Close the computer display, and turn the computer over.

3.Unlock the battery latch 1 . Hold the battery lock lever in the unlocked position2 , and then remove the battery pack2 .

1

2

2

4.Insert a fully charged battery until it clicks into place.

5.Slide the manual battery latch to the locked position to secure the battery in place.

6.Turn the computer over again. Connect the ac power adapter and all cables.

Replacing the backup battery

Before you start, print these instructions.

Note: Your computer might look different from the illustrations in this topic.

32 User Guide

Prerequisites for the procedure

DANGER

If the backup battery is incorrectly replaced, there is danger of an explosion. The backup battery contains a small amount of harmful substances. To avoid possible injury:

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

Keep the battery pack away from fire.

Do not expose it to excessive heat.

Do not expose it to water or rain.

Do not short-circuitit.

Do not drop, crush, puncture, or subject to strong forces. Battery abuse or mishandling can cause the battery to overheat, which can cause gasses or flame to “vent” from the battery pack or coin cell.

To replace the backup battery, do the following:

1.Turn off the computer; then disconnect the ac power adapter and all cables from the computer. Wait three to five minutes to let the computer cool.

2.Close the computer display, and turn the computer over.

3.Remove the battery. See “Replacing the battery” on page 31.

4.Remove the screws 1 , and then remove the cover2 .

1

1

2

2

5. Insert a screwdriver into the backup battery hole and push the backup battery until the battery pops up.

Chapter 7. Replacing devices33

6.Install a new backup battery.

7.Reinstall the computer cover, and then reinstall the screws.

8.Reinstall the battery. See “Replacing the battery” on page 31.

9.Turn the computer over again. Connect the ac power adapter and all cables.

Replacing the hard disk drive

Before you start, print these instructions.

Note: Your computer might look different from the illustrations in this topic.

Prerequisites for the procedure

Attention: The hard disk drive is very sensitive. Incorrect handling can cause damage and permanent loss of data. Observe the following guidelines:

Replace the hard disk drive only if you upgrade it or have it repaired. The connectors and slot of the hard disk drive are not designed for frequent changes, or drive swapping.

Do not drop the drive or subject it to physical shocks. Put the drive on a material, such as soft cloth, that absorbs the physical shock.

Do not apply pressure to the cover of the drive.

Do not touch the connector.

Before removing the hard disk drive, make a backup copy of all the information on it, and then turn the computer off.

Never remove the drive while the computer is operating, in sleep mode, or in hibernation mode.

To replace the hard disk drive, do the following:

1.Turn off the computer; then disconnect the ac power adapter and all cables from the computer. Wait three to five minutes to let the computer cool.

2.Close the computer display, and turn the computer over.

3.Remove the battery. See “Replacing the battery” on page 31.

4.Remove the screws 1 , and then remove the cover2 .

1

1

2

2

5. Remove the screw

3 , and then slide the hard disk drive out

4 .

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3

4

6. Remove the hard disk drive by lifting the tab 5 .

7.Slide a new hard disk drive firmly into place, and then reinstall the screw to secure the drive.

8.Reinstall the computer cover, and then reinstall the screws to secure the cover.

9.Reinstall the battery. See “Replacing the battery” on page 31.

10.Turn the computer over again. Connect the ac power adapter and all cables.

Replacing a memory module

Before you start, print these instructions.

Note: Your computer might look different from the illustrations in this topic.

Prerequisites for the procedure

Note: The operating speed of the memory module has dependency on the system configuration. In some conditions, the memory module in your computer might not be able to operate at the maximum speed.

Attention: Before you start installing a memory module, touch a metal table or a grounded metal object. This action reduces any static electricity from your body. The static electricity could damage the memory module.

To replace a memory module, do the following:

1.Turn off the computer; then disconnect the ac power adapter and all cables from the computer. Wait three to five minutes to let the computer cool.

2.Close the computer display, and turn the computer over.

3.Remove the battery. See “Replacing the battery” on page 31.

Chapter 7. Replacing devices35

4. Remove the screws 1 , and then remove the cover2 .

1

1

2

2

5.If two memory modules are already in the memory slots, press out on the latches on both edges of the socket at the same time 3 , and then remove a memory module to make room for the new one4 . Save the removed memory module for future use.

3

3

4

6.Find the notch on the contact edge side of the memory module you are installing.

Attention: To avoid damaging the memory module, do not touch its contact edge.

7.With the notched end of the memory module toward the contact edge side of the socket, insert the memory module into the socket at an angle of about 20 degrees 5 ; then press it in firmly6 .

5

6

Note: If only one memory module is to be installed, install it in the bottom slot.

8.Pivot the memory module downward until it snaps into place.

9.Make sure that the memory module is firmly installed in the slot and cannot be moved easily.

10.Reinstall the computer cover, and then reinstall the screws to secure the cover.

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11.Reinstall the battery. See “Replacing the battery” on page 31.

12.Turn the computer over again. Connect the ac power adapter and all cables.

Replacing the PCI Express Mini Card for wireless LAN/WiMAX connection

Before you start, print these instructions.

Note: Your computer might look different from the illustrations in this topic.

Your computer has a PCI Express Mini Card slot for connection to a wireless LAN/WiMAX. To replace the PCI Express Mini Card, read the following prerequisites.

Prerequisites for the procedure

DANGER

During electrical storms, do not connect the cable to or disconnect it from the telephone outlet on the wall.

DANGER

Electric current from power, telephone, and communication cables is hazardous. To avoid shock hazard, disconnect the cables before opening the cover of this slot.

Attention: Before you start installing a PCI Express Mini Card, touch a metal table or a grounded metal object. This action reduces any static electricity from your body. The static electricity could damage the card.

To replace the PCI Express Mini Card, do the following:

1.Turn off the computer; then disconnect the ac power adapter and all cables from the computer. Wait three to five minutes to let the computer cool.

2.Close the computer display, and turn the computer over.

3.Remove the battery. See “Replacing the battery” on page 31.

4.Remove the screws 1 , and then remove the cover2 .

1

1

2

2

5.If a tool for removing connectors is included in the package with the new card, use it to disconnect the cables 3 from the card. If no such tool is included, disconnect the cables by picking up the connectors with your fingers and gently unplugging them. Then remove the screw4 and the card pops up.

Chapter 7. Replacing devices37

3

3

4

6. Remove the card.

5

7.Align the contact edge of the new PCI Express Mini Card with the corresponding socket.

8.Pivot the card until you can snap it into place. Then secure the card with the screw.

9.Connect the antenna cables to the new PCI Express Mini Card. Be sure to attach the gray cable to the connector marked “MAIN” or “M” on the card, and the black cable to the connector marked “AUX” or “A”.

10.Reinstall the computer cover, and then reinstall the screws to secure the cover.

11.Reinstall the battery. See “Replacing the battery” on page 31.

12.Turn the computer over again. Connect the ac power adapter and all cables.

Removing the optical drive

Before you start, print these instructions.

Note: Your computer might look different from the illustrations in this topic.

To replace the optical drive, do the following:

1.Turn off the computer; then disconnect the ac power adapter and all cables from the computer. Wait three to five minutes to let the computer cool.

2.Close the computer display, and turn the computer over.

3.Remove the battery. See “Replacing the battery” on page 31.

4.Remove the screws 1 , and then remove the cover2 .

38 User Guide

1

1

2

2

5. Remove the screw

3

that secures the optical drive.

 

 

3

6. Insert a screwdriver into the screw hole, and then push the optical drive 5 to remove it.

5

4

 

7.Insert a new optical drive, and then reinstall the screw to secure the drive.

8.Reinstall the computer cover, and then reinstall the screws to secure the cover.

9.Reinstall the battery. See “Replacing the battery” on page 31.

10.Turn the computer over again. Connect the ac power adapter and all cables.

Chapter 7. Replacing devices39

40 User Guide

Chapter 8. Preventing problems

An important part of owning a Lenovo notebook computer is maintenance. With proper care, you can avoid common problems. The chapter provides information that can help you keep your computer running smoothly.

“General tips for preventing problems” on page 41

“Taking care of your computer” on page 42

General tips for preventing problems

1.Check the capacity of your hard disk drive from time to time. If the hard disk drive gets too full, the operating system will slow down and might produce errors.

2.Empty your recycle bin on a regular basis.

3.To free up disk space, uninstall unused application programs.

4.Clean out your Inbox, Sent, and Trash folders from your e-mailclient program.

5.Back up your data at least once a week. If critical data is present, it is a good idea to perform a daily backup operation. Lenovo has many backup options available for your computer. CD-RWdrives andCD-RW/DVDdrives are available for most computers and are easily installed.

6.Schedule system restore operations to take a system snapshot periodically.

Note: Always take a system snapshot before installing new drivers, updating software, or installing new software.

7.Update device drivers and BIOS when needed.

8.Profile your machine at http://www.lenovo.com/support to keep up to date with current drivers and revisions.

9.Keep up to date for device drivers on other non-Lenovohardware. You might want to read the device driver information release notes prior to updating for compatibility or known issues.

10.Keep a log book. Entries might include major hardware or software changes, driver updates, minor issues you have experienced, and how you resolved the minor issues.

11.If required, you can find your country's Customer Support Center at http://www.lenovo.com/support. When calling the Customer Support Center, make sure that you have your machine model type, serial number, and the computer in front of you. Also, if the computer is producing error codes, it is helpful to have the error screen on or the message written down.

If you need help, service, technical assistance, or just want more information about Lenovo products, you will find a wide variety of sources available from Lenovo to assist you. This section contains information about where to go for additional information about Lenovo and our products, what to do if you experience a problem with your computer, and whom to call for service should it be necessary.

Information about your computer and preinstalled software, if any, is available in the documentation that comes with your computer. That documentation includes printed books, online books, readme files, and help files. In addition, information about Lenovo products is available on the World Wide Web.

Microsoft® Service Packs are the latest software source for Windows product updates. They are available through Web download (connection charges might apply) or through discs. For more specific information and links, go tohttp://www.microsoft.com. Lenovo offers technical assistance with installation of, or questions related to, Service Packs for yourLenovo-preloadedMicrosoft Windows product. For information, contact the Customer Support Center.

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Taking care of your computer

Although your computer is designed to function reliably in normal work environments, you need to use common sense in handling it. By following these important tips, you will get the most use and enjoyment out of your computer.

Be careful about where and how you work

Do not eat or smoke over your keyboard. Particles that fall into your keyboard can cause damage.

Store packing materials safely out of the reach of children to prevent the risk of suffocation from plastic bags.

Keep your computer away from magnets, activated cellular phones, electrical appliances, or speakers (within 13 cm or 5 inch).

Avoid subjecting your computer to extreme temperatures (below 5°C/41°F or above 35°C/95°F).

Some appliances, such as certain portable desktop fans or air purifiers, can produce negative ions. If a computer is close to such an appliance, and is exposed for an extended time to air containing negative ions, it might become electrostatically charged. Such a charge might be discharged through your hands when you touch the keyboard or other parts of the computer, or through connectors on I/O devices connected to it. Even though this kind of electrostatic discharge (ESD) is the opposite of a discharge from your body or clothing to the computer, it poses the same risk of a computer malfunction.

Your computer is designed and manufactured to minimize any effects of electrostatic charge. An electrostatic charge above a certain limit, however, can increase the risk of ESD. Therefore, when using the computer close to an appliance that can produce negative ions, give special attention to the following:

Avoid directly exposing your computer to the air from an appliance that can produce negative ions.

Keep your computer and peripherals as far as possible from such an appliance.

Wherever possible, ground your computer to facilitate safe electrostatic discharge.

Note: Not all such appliances cause a significant electrostatic charge.

Be gentle with your computer

Avoid placing any objects (including paper) between the display and the keyboard or the palm rest.

Do not open the display beyond 130 degrees, as this might damage the computer hinge.

Do not turn your computer over while the ac power adapter is plugged in. This could break the adapter plug.

Carry your computer properly

Before moving your computer, be sure to remove any media, turn off attached devices, and disconnect cords and cables.

Before moving your computer, ensure that it is in sleep or hibernation mode, or turned off. This will prevent damage to the hard disk drive and avoid data loss.

When picking up your open computer, hold it by the bottom. Do not pick up or hold your computer by the display.

Use a quality carrying case that provides adequate cushion and protection. Do not pack your computer in a tightly packed suitcase or bag.

For outdoor use

Back up your critical data before you take your computer outdoors.

Ensure that the battery is fully charged.

42 User Guide

Be sure to turn off the power and close the LCD when not in use.

When you leave the computer in your car, place it on the back seat to avoid being insolated.

Carry the ac power adapter and power cord with the computer.

Handle storage media and drives properly

If your computer comes with an optical drive, do not touch the surface of a disc or the lens on the tray.

Wait until you hear the CD or DVD click into the center pivot of the drive before closing the tray.

When installing the hard disk drives or optical drives, follow the instructions shipped with your hardware, and apply pressure only where needed on the device.

Turn off your computer if you are replacing the hard disk drive.

Store your external and removable hard disk drives or optical drives in the appropriate containers or packaging when not in use.

Before you install any of the following devices, touch a metal table or a grounded metal object. This action reduces any static electricity from your body. The static electricity could damage the device.

Memory cards, such as SD cards, Memory Stick cards, MultiMediaCard modules, and Memory Stick Pro cards

Memory modules

Note: Not all listed devices are included in your computer.

This action reduces any static electricity from your body. The static electricity could damage the device.

When transferring data to or from a flash media card, such as an SD card, do not put your computer in sleep or hibernation mode before the data transfer is complete. To do so might cause damage to your data.

Data protection

Do not delete unknown files or change the name of files or directories that were not created by you; otherwise, your computer software might fail to work.

Be aware that accessing network resources can leave your computer vulnerable to computer viruses, hackers, spyware, and other malicious activities that might damage your computer, software, or data.

It is your responsibility to ensure that you have adequate protection in the form of firewalls, antivirus software, and anti-spywaresoftware and keep the software up to date.

Take care in setting passwords

Remember your passwords. If you forget a supervisor or hard disk password, Lenovo authorized service providers will not reset it, and you might have to replace your system board or hard disk drive.

Clean the cover of your computer

Occasionally clean your computer by doing the following:

1.Prepare a mixture of a gentle kitchen-usedetergent (one that does not contain abrasive powder or strong chemicals such as acid or alkaline). Use 5 parts water to 1 part detergent.

2.Absorb the diluted detergent into a sponge.

3.Squeeze excess liquid from the sponge.

4.Wipe the cover with the sponge, using a circular motion and taking care not to let any excess liquid drip.

5.Wipe the surface to remove the detergent.

6.Rinse the sponge with clean running water.

7.Wipe the cover with the clean sponge.

Chapter 8. Preventing problems43

8.Wipe the surface again with a dry, soft, lint-freecloth.

9.Wait for the surface to dry completely and remove any fibers from the cloth.

Note: Shut down the computer and then disconnect the power cord before cleaning the computer.

Cleaning your computer keyboard

To clean the computer keyboard, do the following:

1.Apply some isopropyl rubbing alcohol to a soft, dust-freecloth.

2.Wipe each keytop surface with the cloth. Wipe the keys one by one; if you wipe several keys at a time, the cloth might hook onto an adjacent key and possibly damage it. Make sure that no liquid drips onto or between the keys.

3.Allow to dry.

4.To remove any crumbs and dust from beneath the keys, you can use a camera blower with a brush or cool air from a hair drier.

Note: Avoid spraying cleaner directly onto the display or the keyboard.

Cleaning your computer display

To clean your computer display, do the following:

1.Gently wipe the display with a dry, soft, lint-freecloth. If you see a scratchlike mark on your display, it might be a stain transferred from the keyboard when the cover was pressed from the outside.

2.Wipe or dust the stain gently with a soft, dry cloth.

3.If the stain remains, moisten a soft, lint-freecloth with water or a50-50mixture of isopropyl alcohol and water that does not contain impurities.

4.Wring out as much of the liquid as you can.

5.Wipe the display again; do not let any liquid drip into the computer.

6.Be sure to dry the display before closing it.

Registering your computer

To register your computer with Lenovo, do either of the following:

Go to http://www.lenovo.com/register and then follow theon-screeninstructions to register your computer.

Connect your computer to the Internet and register your computer through a preinstalled registration program.

For the Windows 7 operating system: The preinstalled Lenovo Product Registration program launches automatically after you have used your computer for a time. Follow the on-screeninstructions to register your computer.

For the Windows 8 operating system: Launch the Lenovo Support program. Then click Registration and follow theon-screeninstructions to register your computer.

Be sure not to modify your computer

Only an authorized Lenovo repair technician should disassemble and repair your computer.

Do not modify or tape the latches to keep the display open or closed.

44 User Guide

Chapter 9. Troubleshooting computer problems

This chapter provides information on what to do if you experience a problem with your computer.

Notice for users in U.S.A

If your product is not working correctly, DO NOT RETURN IT TO THE STORE.

For technical assistance, contact a Lenovo support specialist 24 hours a day by calling toll free 1-877-4LENOVO(1-877-453-6686).

Additionally, you can find support information and updates on the Lenovo Web site located at http://www.lenovo.com/support

Troubleshooting

To make sure that your computer has the features that are introduced in the following sections, consult the online help or the list shipped with your computer.

Battery and power problems

This topic contains instructions on troubleshooting battery and power problems.

Battery problems

Print these instructions now and keep it with your computer for reference later.

The battery pack cannot be fully charged in the standard charge time when the computer is powered off.

The battery pack might be over-discharged.Do the following:

1.Turn off the computer.

2.Make sure that the over-dischargedbattery pack is in the computer.

3.Connect the ac power adapter to the computer and let it charge.

If a quick charger is available, use it to charge the over-dischargedbattery pack.

If the battery pack cannot be fully charged in 24 hours, use a new battery pack.

Your computer shuts down before the battery status indicator shows empty, or your computer operates after the battery status indicator shows empty.

Discharge and recharge the battery pack.

The operating time for a fully charged battery pack is short.

Discharge and recharge the battery pack. If your battery operating time is still short, use a new battery pack.

The computer does not operate with a fully charged battery pack.

The surge protector in the battery pack might be active. Turn off the computer for one minute to reset the protector; then turn on the computer again.

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45

The battery pack cannot be charged.

You cannot charge the battery when it is too hot. If the battery feels hot, remove it from the computer and allow it to cool to room temperature. After it cools, reinstall it and recharge the battery. If it still cannot be charged, have it serviced.

An ac power adapter problem

Print these instructions now and keep it with your computer for reference later.

The ac power adapter is connected to the computer and the working electrical outlet, but the power adapter (power plug) icon is not displayed on the taskbar. Also the ac power indicator does not light up.

Do the following:

1.Make sure that the connection of the ac power adapter is correct. For instructions on connecting the ac power adapter, see Safety, Warranty, and Setup Guide that comes with your computer.

2.If the connection of the ac power adapter is correct, turn off the computer, then disconnect the ac power adapter and remove the main battery.

3.Reinstall the battery and reconnect the ac power adapter, then turn on the computer.

4.If the power adapter icon still is not displayed on the taskbar and the ac power indicator does not light up, have the ac power adapter and your computer serviced.

A startup problem

Print these instructions now and keep it with your computer for reference later.

The Microsoft Windows operating system does not start.

On the Windows operating system, use the recovery program preinstalled on your computer to help solve or identify your problem. For details, refer to the instructions in Chapter 6 “Recovery overview” on page 27.

Sleep and hibernation problems

Print these instructions now and keep it with your computer for reference later.

A critical low-batteryerror occurs, and the computer immediately turns off.

The battery power is getting low. Connect the ac power adapter to the computer and plug it into an electrical outlet, or replace the battery with a charged one.

The computer enters sleep mode immediately after the power-onself-test.

Make sure that:

The battery is charged.

The operating temperature is within the acceptable range. refer to Chapter 8 “Preventing problems” on page 41.

Computer screen problems

Print these instructions now and keep it with your computer for reference later.

The screen is blank.

Do any of the following:

If you are using the ac power adapter or using the battery, and the battery status indicator is on, press Fn + up arrow to increase the screen brightness.

If the power indicator is in blinking, press the power button to resume from the sleep mode.

46 User Guide