May be you could try that (from Onyx, for a Max2):
Quote:
To switch off the device firstly, and then long press the “back” button and insert the USB cable to charge at the same time, for about 5 seconds, the blue light glows, then release the “back” button, when the red light glows, enter into the recovery interface, to select “wipe data\factory reset – yes delete all user data - reboot”, which will be restore the factory default settings.
This will clear all the personal data (such as reading records, third-party app, system settings), but will not clear the files already stored in the storage.
to select up and down direction by page turn buttons, power button to enter/confirm;
|
Good luck
Denis