Turn use of phone lock code on or off
The phone lock code prevents others from accessing the contents of your mobile phone (pictures, messages etc.). When the phone lock code is turned on, it needs to be used every time you turn on your mobile phone and when it has been in sleep mode.
Find "Biometrics and security"
Slide two fingers downwards starting from the top the screen.
Tap the settings icon.
Tap Biometrics and security.
Create phone lock code using a fingerprint
Tap the required phone lock code and follow the instructions on the screen to create an additional phone lock code.
Follow the instructions on the screen to create the phone lock code using your fingerprint.
Tap the indicator next to "Fingerprint unlock" to turn the function on or off.
Tap the Return key twice.
Turn off use of phone lock code
Tap Lock screen.
Tap Screen lock type and key in the current phone lock code.
Tap Remove data.
Return to the home screen
Tap the Home key to return to the home screen.