My galaxy s7 pin changed randomly without me doing anything. Is there anyway I can change the password back without wiping it?

I've had my s7 for a little over 2 years now and for the last couple months it kept randomly restarting, only to turn on and restart again. Then it would just shut off for a couple hours. This time it repeated that, only when I turned it on after a few hours and typed inn my pin, it didn't work. My pin was incorrect. I didn't change it before it shut down. Someone help please, or at least direct me to where I should post this

Submitted March 05, 2019 at 06:04AM by NicTheTerrible https://ift.tt/2IPv0CB via TikTokTikk