For the fingerprint scanner to operate, hands must be clean and free of moisture, dirt, oil, lotion, dyes, etc.
Up to four fingerprints can be registered on the device.
From a Home screen, swipe up or down from the center of the display to access the apps screen.
These instructions only apply to Standard mode and the default Home screen layout.
Navigate: Settings > Biometrics and security.
From the Biometrics section, tap Fingerprints.
If presented, enter the current PIN, password, or pattern.
From the Manage fingerprints section, tap Add fingerprint.
Swipe your finger across the sensor until the progress meter reaches 100%.
Repeat this step as necessary until the process is complete.
For greater accuracy, finger placement should vary slightly each time.