Factory reset will lock the phone with Google account, if you know the Google account and password, you can use fatory reset to unlock it, but if you don't have the Google account and the password of the locked phone, don't recommend the factory reset, use the Eelphone Androi Unlock to unlock it, or when the phone was locked by Google account already, use the Eelphone Google Account Removal to bypass Google verification, but also with losing all data on the locked phone.
The phone are not currently locked, with the biometrics i have access, i don't know only the PIN, and i don't know why is changed.
Anyone knows why this happen?
This is a huge bug, how do I avoid that, once the problem is solved this time?
The solution was to restart the phone in safe mode by holding down the volume -,
once started I entered the original pin which is accepted here and then I recorded it again, once restarted the problem is solved.
The important thing now is to understand why it happens.