Welcome to Android Central! Pattern/PIN/password would always be the backup (and in fact, all devices that uses fingerprint will ask for the pattern/PIN/password periodically for increased security, especially upon startup). So if you can't remember your pattern, then you're out of luck.
Sorry, but we don't allow discussions about trying to bypass security. Even if there's a legitimate reason, that information could be used by others for more nefarious purposes. Thread closed.
01-06-2022 11:00 AM