How to factory reset SYMPHONY H400? How to wipe all data in SYMPHONY H400? How to bypass screen lock in SYMPHONY H400? How to restore defaults in SYMPHONY H400?
The following tutorial shows all method of master reset SYMPHONY H400. Check out how to accomplish hard reset by hardware keys and Android 6.0 Marshmallow settings. As a result your SYMPHONY H400 will be as new and your MediaTek MT6735 core will run faster.
Symphony H400 Hard Reset Done Video - video