User Manual

21
Notes: If the battery has been fully charged and working temperature is within the
acceptable range, please do the following:
a. Firstly, press the power button for 2s to start up the tablet PC.
b. Secondly, press and hold the power button for 10s to force to shut down the tablet PC.
c. Next, press the power button for 2s to restart the tablet PC, and then use Push-button
Reset recovery system to reset the tablet PC.
If the problem still exists, please send the tablet PC to be repaired.
The tablet PC can not return from sleep mode and it does not work.
ș If the tablet PC can not return from sleep mode, the battery could be fully discharged..
ș If the tablet PC is in sleep mode, connect the AC power adapter to the tablet PC and then
press the power button.
ș If the tablet PC is in Power off state, connect the AC power adapter to the tablet PC and
then press the power button to restore running.
Notes: If the system still can not return from sleep mode and it has stopped responding,
and moreover, the tablet PC can not be shut down, please coldshut down the tablet PC, but
the data not yet saved may be lost. To cold shut down the tablet PC, please hold the power
button for 10s or longer. If the tablet PC still can not be shut down, please unplug the AC
power adapter.
Screen failures
Black screen
ș Please take the measures as follows:
- Please press the power button to confirm whether the tablet PC is in sleep mode.
- If the screen stays black when power-on, please refer to “screen is unreadable or
distorted.”
Screen content is unreadable or distorted.
ș Please ensure the right setting of screen resolution and color quality.