My phone has three options: PIN lock, face lock, and fingerprint lock.But when I want to change it, it just asks me to confirm with the fingerprint lock and change it. When I press the fingerprint lock, the text comes up. Fingerprint doesn't match
Settings > security and privacy > lost device protection > theft protection > identity check
Disable it. It will ask for a fingerprint, but choose 'use Samsung account' and enter your account's password. It will start an hour delay, but after the delay finishes, you will be able to disable it.
After disabling it, you can change your fingerprint without it asking for fingerprint.
