109K views 2 years ago. How to Hard Reset Vivo Y51 Smartphone. If you forgot the security password of your Vivo Y51, This will work for Y51 and any other Vivo Smartphone. [Factory In today's video i am going to show How to Hard Reset in VIVO Y51A/VIVO Y51(2021 phone full guide watch full video for acqurecy..unless you have to UMiT6.