1 Find "Fingerprint management"
Press Settings.
Press Security & privacy.
Press Fingerprint management.
2 Create phone lock code using a fingerprint
Press the required phone lock code and follow the instructions on the screen to create an additional phone lock code.
Press New fingerprint and follow the instructions on the screen to create the phone lock code using your fingerprint.
Press OK.
Press the Return key twice.
3 Turn off use of phone lock code
Press Screen lock & passwords.
Press Password.
Key in the current phone lock code and press None.
Press REMOVE.
4 Return to the home screen
Press the Home key to return to the home screen.