How to factory reset XTOUCH F81? How to wipe all data in XTOUCH F81? How to bypass screen lock in XTOUCH F81? How to restore defaults in XTOUCH F81?
The following tutorial shows all method of master reset XTOUCH F81. Check out how to accomplish Hard Reset by hardware keys and Android 4.2 Jelly Bean settings. As a result your XTOUCH F81 will be as new and your Allwinner A31S core will run faster.