Samsung SM-A525F/DS User Manual page 26

Basics
When you are finished registering your fingerprints, tap Done.
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You can check whether your fingerprint is registered by tapping Check added
fingerprints.
Unlocking the screen with your fingerprints
You can unlock the screen with your fingerprint instead of using a pattern, PIN, or password.
Launch the Settings app and tap Biometrics and security → Fingerprints.
1
Unlock the screen using the preset screen lock method.
2
Tap the Fingerprint unlock switch to activate it.
3
On the locked screen, place your finger on the fingerprint recognition sensor and scan
4
your fingerprint.
Changing the fingerprint recognition icon setting
Set the device to show or hide the fingerprint recognition icon when you tap the screen while
the screen is turned off.
Launch the Settings app and tap Biometrics and security → Fingerprints.
1
Unlock the screen using the preset screen lock method.
2
Tap Show icon when screen is off and select an option.
3
Deleting registered fingerprints
You can delete registered fingerprints.
Launch the Settings app and tap Biometrics and security → Fingerprints.
1
Unlock the screen using the preset screen lock method.
2
Select a fingerprint to delete and tap Remove.
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