Troubleshooting
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 set correctly, 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 Push-button reset. 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. Perform the
following to resume from sleep mode:
– Press any key on the keyboard.
Sleep 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.
The computer does not return from sleep mode and the
computer does not work.
• If your computer is in sleep mode, connect the AC
power adapter to the computer, then press the
Windows button or the Power button.
• If the system still does not return from sleep mode,
your system has stopped responding, and you cannot
turn off the computer; reset the computer. Unsaved
data may be lost. To reset the computer, press and
hold the Power button for eight seconds or more. If the
computer still does not reset, remove the AC power
adapter.
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User Guide
