How to factory reset TENGDA Z2? How to wipe all data in TENGDA Z2? How to bypass screen lock in TENGDA Z2? How to restore defaults in TENGDA Z2?
The following tutorial shows all methods of master reset TENGDA Z2. Check out how to accomplish Hard Reset by hardware keys and Android 4.1 Jelly Bean settings. As a result your TENGDA Z2 will be as new and your MediaTek MT6592 cores will run faster.