LG GPad X 10.1 User Manual page 12

Important Notice
5. If the screen freezes
If the screen freezes or the device does not respond when you try to operate it:
Press and hold the Power/Lock Key + Volume Down Key for about 8 seconds to reset
your device. To turn your device off, press and hold the Power/Lock Key + Volume Down
Key for about 12 seconds. If it still does not work, please contact the service center.
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