Lenovo U260 manual Troubleshooting, Display problems, Password problem

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U260 User Guide V1.0_en.book Page 20 Monday, October 4, 2010 12:11 PM

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.

When I turn on the computer, only a white cursor appears on a blank screen.

My screen goes blank while the computer is on.

•If the screen is blank, make sure that:

-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.

•Restore backed-up files to your Windows environment or the entire contents of your hard disk to the original factory contents using OneKey Recovery. If you still see only the cursor on the screen, have the computer serviced.

•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 LCD screen has been turned off.

A Password problem

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.

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Contents IdeaPad U260 If your product is not working correctly Regulatory NoticeContents Page Getting to know your computer Top viewWireless module Antennas Select Models only Computer display Power buttonGetting to know your computer Select models onlyLeft-side view Kensington slotUSB port Headphone micRight-side view Bottom view Fan louversLearning the basics First use„ Shutting down your computer Learning the basicsUsing AC adapter and battery „ Checking battery status„ Charging the battery Using the touchpad Left click buttonRight click button Using the keyboard „ Numeric keypad„ Function key combinations Learning the basics Connecting external devices „ Connecting a universal serial bus USB device„ Connecting a Bluetooth device Select models only Enabling Bluetooth communications on your computerSpecial keys and buttons „ OneKey Rescue system buttonSystem status indicators „ Using VeriFace „ Using passwordsSecuring your computer „ Attaching a security lock not suppliedConnecting to the Internet Wired connection„ Software configuration „ Hardware connectionWireless connection „ Using Wi-Fi/WiMAX Select models onlyOneKey Rescue system OneKey Rescue system„ Introduction Troubleshooting Frequently asked questionsTroubleshooting TroubleshootingDisplay problems Password problemTroubleshooting Sleep or hibernation problems Computer screen problemsSound problems Troubleshooting Battery problems Hard disk drive problemStartup problem OneKey Rescue system problemsTroubleshooting Other problems Appendix A. Lenovo limited warranty „ What this warranty covers„ How to obtain warranty service „ What your service provider will do to correct problems„ Replacement of a product or part Appendix A. Lenovo limited warranty„ Your additional responsibilities „ What this warranty does not cover „ Use of personal information„ Limitation of liability „ Dispute resolution „ Other rights„ European Economic Area EEA Warranty information Product or Machine type Country or region of purchase„ Types of warranty service Appendix A. Lenovo limited warranty Appendix B. Product specific Notices Energy star informationAppendix B. Product specific Notices WindowsElectronic emissions notices „ Federal Communications Commission FCC Statement„ Industry Canada Class B Emission Compliance Statement „ Avis de conformité à la réglementation d’Industrie Canada„ German Class B Compliance Statement „ European Union Compliance Statement Class B Compliance Appendix C. Specifications Model Name IdeaPad U260 Machine Type 20067/0876 Form FactorSystem PortsTrademarks Problems Index
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