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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 Recovery. 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 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.
Keyboard problems
A number appears when you enter
a letter (Y470).
The numeric lock function is on. To disable it, press Fn + F8.
36


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