How to factory reset MASSTEL N1? How to wipe all data in MASSTEL N1? How to bypass screen lock in MASSTEL N1? How to restore defaults in MASSTEL N1?
The following tutorial shows all method of master reset MASSTEL N1. Check out how to accomplish hard reset by hardware keys and Android 6.0 Marshmallow settings. As a result your MASSTEL N1 will be as new and your SC7731C core will run faster.
Hard reset Masstel N506 - video