appears, and the computer immediately
turns off.
The computer enters sleep mode
immediately after Power-on.
Make sure that:
- The battery is charged.
- The operating temperature is within the acceptable range. Storage and operating
temperature depends upon the actual temperature. Avoid subjecting your
computer to extreme temperatures (below 5°C/41°F or above 35°C/95°F).
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 the computer does not return from sleep mode, the battery may be depleted. Connect
the AC power adapter to the computer.
If your computer is in sleep mode, connect the AC adapter to the computer, then press
the Windows button (Tablet mode only) or the power button.
If your computer is powered-off, connect the AC adapter to the computer, then press
the power button to resume operation.
Note: 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 5 seconds or more. If the computer still does
not reset, remove the AC adapter, then connect the AC adapter to the computer again and press the power button.
Display panel problems
The screen is blank. Do the following:
- If you are using the AC adapter, or using the battery, and the battery status
indicator is on, press F10 to make the screen brighter. (Notebook mode only)
- Press the power button to confirm whether the computer is in sleep mode.
- If the problem persists, follow the solution in the next problem “The screen is
unreadable or distorted.”
The screen is unreadable or distorted. Make sure that:
- The screen resolution and color quality are correctly set.
- The monitor type is correct.
Incorrect characters appear on the screen. Are the operating system or programs installed correctly? If they are installed and
configured correctly, have the computer serviced.
Sound problems
No sound can be heard from the speaker even
when the volume is turned up.
Make sure that:
- The Mute function is off.
- The combo audio jack is not being used.
- Speakers are selected as the playback device.
Battery problems
Your computer shuts down before the battery
status indicator shows empty.
-or-
Your computer operates after the battery
status indicatorshows empty.
Disconnect any external devices from the computer and then charge the battery in a
room temperature.
A startup problem
The Microsoft® Windows operating system
does not start.
For details, see “Recovery system”.
Recovery system problems
Fail to restore system partition to factory
default.
The system partition, such as the partition size or the drive capacity of C, has been
modified.
Other problems