Nokia T21 user guide
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Protect your tablet with your face
Set up face authentication
- Tap
Settings >Security >Face unlock . - Select what backup unlocking method you want to use for the lock screen and follow the instructions shown on your tablet.
Keep your eyes open and make sure your face is fully visible and not covered by any object, such as a hat or sunglasses.
Note: Using your face to unlock your tablet is less secure than using a pin or a pattern. Your tablet may be unlocked by someone or something with similar appearance. Face unlock may not work properly in backlight or too dark or bright environment.
Unlock your tablet with your face
To unlock your tablet, just turn your screen on and look at the front camera.
If there is a facial recognition error, and you cannot use alternative sign-in methods to recover or reset the tablet in any way, your tablet will require service. Additional charges may apply, and all the personal data on your tablet may be deleted. For more info, contact the nearest authorized service facility for your tablet, or your tablet dealer.