If the device supports hard-reset function.
1, power off the device
2, press the hard-reset button constantly
3, power on the device
4, keep pressing the button for 15seconds after powering on.
How to restore the device through hard-reset button?
If the device supports hard-reset function.
1, power off the device
2, press the hard-reset button constantly
3, power on the device
4, keep pressing the button for 15seconds after powering on.