How to factory reset ZTC ZT8169? How to wipe all data in ZTC ZT8169? How to bypass screen lock in ZTC ZT8169? How to restore defaults in ZTC ZT8169?
The following tutorial shows all method of master reset ZTC ZT8169. Check out how to accomplish hard reset by hardware keys and Vendor settings. As a result your ZTC ZT8169 will be as new and your core will run faster.