WHAT SHOULD I DO IF MY FINGERPRINT UNLOCK FUNCTION ISN'T WORKING?

If you have recently restarted your device, Pattern, PIN or Password security unlocking is required. The Fingerprint Unlock does not function at this point but it will work again after the device is unlocked using another method.    

Make sure there is nothing blocking the sensor, such as water or sweat on the fingerprint sensor. If there is a block, wipe the screen and try again. 

Try to re-enter your fingerprint to your device by accessing “SETTINGS” → “SECURITY & BIOMETRICS” → “FINGERPRINT" → Confirm your pattern/PIN/Password security lock → “ADD FINGERPRINT".

Try to reset or update your device. 

If the previously described options do not help, you can contact our hotline or repair center to get more professional technical assistance. Find the hotline or repair center information from the TCL website or APP “Support Center”.