How to factory reset SYMPHONY ZVI? How to wipe all data in SYMPHONY ZVI? How to bypass screen lock in SYMPHONY ZVI? How to restore defaults in SYMPHONY ZVI?
The following tutorial shows all method of master reset SYMPHONY ZVI. Check out how to accomplish hard reset by hardware keys and Android 4.4 KitKat settings. As a result your SYMPHONY ZVI will be as new and your MediaTek MT6592M core will run faster.
how to hard reset symphony ZVI by milon vai - video
Hard Reset will erase all of your data
All described operations you are doing at your own risk.