User guide

24
Chapter 4. Troubleshooting
Troubleshooting - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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 and hold the Power
button for three seconds for confirmation.
- Press and hold the Power button for seven seconds to force
shut down the computer. Then press the power button for
three seconds to restart.
•If these items are set correctly and
the screen remains blank,
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 mode:
- Press any key on the keyboard (located on the folio case).
- Press the Power button.
- Press the Windows button.
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, do the following:
1 Press the Power button for three seconds to turn on the computer.
2 Press and hold the Power button for seven seconds to force shut down.
3 Press the Power button for three seconds again to restart. Then reset the computer with the
Push-button reset recovery system.
If the problem persis
ts, have the computer serviced.