How to factory reset VIVO Y91C? How to wipe all data in VIVO Y91C? How to bypass screen lock in VIVO Y91C? How to restore defaults in VIVO Y91C?
The following tutorial shows all method of master reset VIVO Y91C. Check out how to accomplish hard reset by hardware keys and Android settings. As a result your VIVO Y91C will be as new and your MediaTek Helio P22 (MT6762) core will run faster.