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Chapter 4. Troubleshooting
Troubleshooting
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If you do not find your problem here, see Chapter 1. The following section only describes problems
that might negate the need to refer to the more comprehensive information in Chapter 1.
Display problems
When I turn on the computer,
nothing appears on the screen.
• If the screen is blank, make sure that:
- 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.)
• 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 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 power management is enabled. Do one of the
following to resume from sleep or hibernation mode:
- Press any key on the keyboard. (Notebook mode only)
-Press the Power button.
- Press the Windows button.
-Press F9 ( ) to confirm whether the backlight of the
LCD screen has been turned off.
Sleep or hibernation problems
The critical low-battery error
message appears, and the
computer immediately turns off.
• The battery power is getting low. Connect the AC power
adapter to the computer.
The computer enters sleep
mode immediately after
Power-on.
• Make sure that:
- The battery is charged.
- The operating temperature is within the acceptable range.
See “Chapter 2. Use and care Information” in the Lenovo
Safety and General Information Guide.
Note: If the battery is charged and the temperature is within range, have the computer serviced.