How to factory reset CHANGHONG Q9? How to wipe all data in CHANGHONG Q9? How to bypass screen lock in CHANGHONG Q9? How to restore defaults in CHANGHONG Q9?
The following tutorial shows all method of master reset CHANGHONG Q9. Check out how to accomplish hard reset by hardware keys and Vendor settings. As a result your CHANGHONG Q9 will be as new and your core will run faster.