How to factory reset GINZZU S4020? How to wipe all data in GINZZU S4020? How to bypass screen lock in GINZZU S4020? How to restore defaults in GINZZU S4020?
The following tutorial shows all method of master reset GINZZU S4020. Check out how to accomplish hard reset by hardware keys and Android 5.1 Lollipop settings. As a result your GINZZU S4020 will be as new and your Spreadtrum SC7731C core will run faster.