Samsung Active4 Pro User Manual page 119

Settings
Set a screen lock method.
3
Place your finger on the Home key. After the device detects your finger, lift it up and place
4
it on the Home key again.
Repeat this action until the fingerprint is registered.
When you are finished registering your fingerprints, tap Done.
5
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.
On the Settings screen, tap Security and privacy → Biometrics → 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.
Deleting registered fingerprints
You can delete registered fingerprints.
On the Settings screen, tap Security and privacy → Biometrics → Fingerprints.
1
Unlock the screen using the preset screen lock method.
2
Select a fingerprint to delete and tap Remove.
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