Samsung SM-G970F/DS User Manual page 216

Settings
Deleting registered fingerprints
You can delete registered fingerprints.
1
On the Settings screen, tap Biometrics and security → Fingerprints.
2
Unlock the screen using the preset screen lock method.
3
Select a fingerprint to delete and tap Remove.
Unlocking the screen with your fingerprints
You can unlock the screen with your fingerprint instead of using a pattern, PIN, or password.
1
On the Settings screen, tap Biometrics and security → Fingerprints.
2
Unlock the screen using the preset screen lock method.
3
Tap the Fingerprint unlock switch to activate it.
4
On the locked screen, place your finger on the fingerprint recognition sensor and scan
your fingerprint.
Changing the fingerprint recognition icon setting (Galaxy S10+, S10)
Set the device to show or hide the fingerprint recognition icon when you pick up your device
or tap on the screen while the screen is turned off.
1
On the Settings screen, tap Biometrics and security → Fingerprints.
2
Unlock the screen using the preset screen lock method.
3
Tap the Show icon when screen is off switch to activate or deactivate it.
216