How to factory reset KEIAN M1021S? How to wipe all data in KEIAN M1021S? How to bypass screen lock in KEIAN M1021S? How to restore defaults in KEIAN M1021S?
The following tutorial shows all method of master reset KEIAN M1021S. Check out how to accomplish Hard Reset by hardware keys and Android 4.1 Jelly Bean settings. As a result your KEIAN M1021S will be as new and your RK3066 core will run faster.