Press and hold Fuction button for 10 second, the power indicator will flash , then go to H/W Calibration, When
you into Calibration, do not touch the screen.
Tablet PC
Touch screen calibration
Set date & time
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Touch the “Settings”icon from the main menu, after select the“Date & Time”and click to enter the List of Date &
time setting,then you can set date, time zone, time , and so on.
Press and hold Back button 10s to go to the touch-screen H/W calibration.