At the same time, press the “Turn on” and “Volume down” buttons for 10-15 seconds.
After that, you will see a menu with Chinese characters or English symbols on the screen. Select the last item (the sensor in this menu does not work). You can go down to the last item using the “Add sound” button.
Easily without superfluous pressing it is necessary to press the button “Inclusions of a tablet”. The tablet will reset the counter and turn on.