1. On the Apps screen, tap Settings → Finger Scanner → Fingerprint manager.
2. If you are registering more fingerprints, a fingerprint recognition pop-up window appears. Scan a registered fingerprint on the device and tap '+' icon.
3. Place your finger on the fingerprint area at the bottom centre of the screen.
4. Tap and hold the screen in the fingerprint area, and then drag your finger downwards over the Home button.
Repeat this action using the same finger until the fingerprint is registered.If you bend your finger or use a fingertip, the device may not recognize your fingerprints.
5. If a pop-up window appears requesting a password, enter the alternative password, tap Continue, enter the alternative password again to verify it, and then tap OK. You can use the alternative password instead of scanning your fingerprints.
6. If a fingerprint lock pop-up window appears, tap OK → Fingerprint. You can use your fingerprints to unlock the screen.
Managing registered fingerprints
You can delete or rename your registered fingerprints.
On the Apps screen, tap Settings → Finger Scanner → Fingerprint manager.
To delete fingerprints, tap 
→ Deregister, select fingerprints, and then tap 'Trash Bin' icon → OK.
→ Deregister, select fingerprints, and then tap 'Trash Bin' icon → OK.
To rename a fingerprint, tap → Select, select a fingerprint, tap 'Pencil' icon, and then enter a new name, and then tap OK.
→ Select, select a fingerprint, tap 'Pencil' icon, and then enter a new name, and then tap OK.
Changing the alternative password
You can change the password that you use as an alternative to scanning your fingerprints.
1. On the Apps screen, tap Settings → Finger Scanner → Change alternative password.
2. Enter the current alternative password and tap Continue.
3. Enter a new password and tap Continue.
4. Enter the password again and tap OK.
Unlocking the screen with fingerprints
You can unlock the screen with the registered fingerprints.
On the Apps screen, tap Settings → Finger Scanner → Screen lock → Fingerprint.
Alternatively, on the Apps screen, tap Settings → Lock screen → Screen lock → Fingerprint.
Verifying the Samsung account password
Use fingerprints to verify your Samsung account password. You can use a fingerprint instead of entering your password, for example, when you purchase content from Samsung Apps.
On the Apps screen, tap Settings → Finger Scanner → Verify Samsung account, and then drag the Verify Samsung account switch to the right. Enter your Samsung account password and tap Confirm.
Using fingerprints for purchases via PayPal
You can make purchases by scanning your fingerprints.
Note: This feature may not be available depending on the region or service provider.
1. On the Apps screen, tap Settings → Finger Scanner → Pay with PayPal.
2. Tap Install under FIDO Ready™ support.
3. Tap Link under PayPal account.
4. Follow the on-screen instructions to sign in to the PayPal website and register your fingerprints.
