Lenovo A10 Laptop User Guide - Lenovo A10 - Page 13

The computer does not return from sleep mode

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The screen goes blank while the computer is on. If these items are properly set, and the screen remains blank, have the computer serviced. Do one of the following to resume from sleep mode: - Press any key on the keyboard. (Notebook mode only) - Press the Power button. Sleep problems The critical low-battery error message appears, and the computer immediately turns off. The computer enters sleep mode immediately after power-on. The battery power is getting low. Connect the USB cable and the AC power adapter to the computer. 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 USB cable and the AC power adapter to the computer, then press the Power button. If your computer is powered-off, connect the USB cable and the AC power 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. Use the reset hole to reset the computer. Display panel problems The screen is blank. Incorrect characters appear on the screen. Do the following: - If you are using the AC power adapter or the battery, and the battery status indicator is on, press make the screen brighter. - If the computer is in sleep mode, press any key to wake it up. 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 indicator shows empty. Other problems Recharge the battery. Your computer does not respond. The connected external device does not work. Press and hold the Power button for five seconds or more and select Shut Down to turn off your computer. If the computer still does not respond, use the reset hole to reset your computer. Do not connect or disconnect any external device cables other than USB while the computer power is on. Otherwise, you might damage your computer.

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If these items are properly set, and the screen remains blank, have the computer serviced.
The screen goes blank while the computer is on.
Do one of the following to resume from sleep mode:
- Press any key on the keyboard. (Notebook mode only)
- Press the Power button.
Sleep problems
The critical low-battery error message appears,
and the computer immediately turns off.
The battery power is getting low. Connect the USB cable and 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 USB cable and the AC power adapter to the computer,
then press the Power button.
If your computer is powered-off, connect the USB cable and the AC power 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. Use the reset hole to reset the computer.
Display panel problems
The screen is blank.
Do the following:
- If you are using the AC power adapter or the battery, and the battery status indicator is on, press
make the screen brighter.
- If the computer is in sleep mode, press any key to wake it up.
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
indicator shows empty.
Recharge the battery.
Other problems
Your computer does not respond.
Press and hold the Power button for five seconds or more and select
Shut Down
to turn off your
computer. If the computer still does not respond, use the reset hole to reset your computer.
The connected external device does not work.
Do not connect or disconnect any external device cables other than USB while the computer power is
on. Otherwise, you might damage your computer.