My S8 has locked me out and changed my screen lock password twice now, whist using the fingerprint recognition system. At first I thought I had let my phone go flat and it had shut off and I had forgotten the password. I charged the phone and entered my password it did not unlock this was the password that I initially set on the phone and had been using up until I initiated the fingerprint ID, then after considerable trouble I managed to get the phone into the factory reset setup which basically wipes the phone and allows you to start over, which I did. The second time was 2.5 months after everything had been reset up. On the day I took my phone of the charger and made several phone calls, my phone was at 86% charge after this and I put it down on the side table next to my chair and watched the footy on the TV, at the end of the game I picked up my phone to ring a mate about the game only to find that I was locked out again and that neither the fingerprint ID or the new password I had set and had been using was useless, so I had to go through all that rig moral again. My advise is don't use the fingerprint ID!
Was this helpful?