I am facing the same issue right now and i do not know what to do, especially that i just updated my software and i ve tried so many times with the "lock my device" option but the initial pin is still required to access the phone.
Hello, 4 dyas ago I received a software update on my S7 phone. After the phone rebooted I could no longer login in with my PIN.
I attempted to use Android Devive Manager to reset the password but since I already had a screen lock password set , ADM did not reset my PIN password.
I really do not want to do a factory reset to loose my personal data. Any help would be appreciated.
Unfortunately I do not have a Samsung Account to help with the unlock