How to factory reset IRBIS TZ831? How to wipe all data in IRBIS TZ831? How to bypass screen lock in IRBIS TZ831? How to restore defaults in IRBIS TZ831?
The following tutorial shows all method of master reset IRBIS TZ831. Check out how to accomplish hard reset by hardware keys and Android 7.0 Nougat settings. As a result your IRBIS TZ831 will be as new and your Spreadtrum SC7731G core will run faster.