Operation Manual

98
TROUBLESHOOTING
Device Problems
Possible Solutions
Unable to power on while working on
battery power.
The remaining battery power is not sufficient for powering
on the device. Connect the device to the power adapter/car
charger and connect it to a wall outlet/the car cigarette
lighter. Next, turn the device on.
The screen stays blank. If there is no display after pressing the On/Off button,
proceed as follows in sequence:
- Connect the device to the power adapter and connect it
to a wall outlet.
- Power the device off and back on.
The screen responds very slowly. Make sure that the battery is charged. If the problem
persists, reset the system. To do so, power the device off
and back on.
The device no longer responds to your
input.
Power the device off and back on.
The display is unreadable. Turn on the backlight and adjust the brightness.
Wrong command after tapping with the
finger.
Re-calibrate the touchscreen.
Cable connection problems Make sure that the power adapter or car charger is properly
connected to the wall outlet or car cigarette lighter.
Do you need to troubleshoot or get to know your system more in detail? Just read on.
Troubleshooting
Possible solutions for the most common questions and problems