How to factory reset NGM E507? How to wipe all data in NGM E507? How to bypass screen lock in NGM E507? How to restore defaults in NGM E507?
The following tutorial shows all method of master reset NGM E507. Check out how to accomplish hard reset by hardware keys and Android 5.1 Lollipop settings. As a result your NGM E507 will be as new and your MT6580M core will run faster.