Filter
Top Products
Chapter 4. Troubleshooting
27
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 installed and configured correctly, 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 its original factory 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 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
mode:
- Touch the touch pad.
- Press any key on the keyboard.
- Press the Power button.
- Press Fn + F2 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, you must ask the system
administrator to reset 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 administrator 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.