Chapter 4. Troubleshooting

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

Display problems

When I turn on the computer, nothing appears on the screen.

If the screen is blank, make sure that:

-The battery pack is installed correctly.

-The AC power 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,

Restore backed-up files to your Windows environment or

only a white cursor appears on

the entire contents of your hard disk to its original factory

a blank screen.

contents using the Lenovo OneKey Recovery System. If you

 

still see only the cursor on the screen, have the computer

 

serviced.

 

The screen goes blank while

Your screen saver or power management may be enabled.

the computer is on.

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

 

resume from sleep mode:

 

- Touch the touch pad.

 

- Press any key on the keyboard.

 

- Press the Power button.

 

- Press F9(

 

) to confirm whether the backlight of the

 

LCD screen has been turned off.

BIOS password problems

I forgot my password.

If you forget your user password, ask the system

 

administrator to clear your user password.

 

If you forget your hard disk drive 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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Lenovo 59375192 manual Troubleshooting, Display problems, Bios password problems