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, navigate: Settings > Lock screen & security .
These instructions apply to Home mode only.
If presented, select a lock screen option (e.g., pattern, PIN, password).
Refer to Set Up Screen Lock for assistance.
At the 'Unlock your phone with your fingerprint' screen, tap NEXT.
If necessary, enter your current PIN, pattern or password then tap OK.
Follow the onscreen demo to add your fingerprint. Place your finger on the Home button (on the back of the device), lift it slightly then place a different part of your finger on the Home button.
Repeat this process as necessary until the 'Fingerprint added' screen appears.
Tap OK (lower-right).
Tap any of the following to turn on or off :
Screen lock: Unlock screen with your fingerprint.
Content lock: Show locked content in Gallery and QuickMemo+ with your fingerprint.