Huawei P20 lite
Turning use of phone lock code on or off
The phone lock code prevents others from accessing the contents of your phone (such as pictures and messages). When the phone lock code is turned on, it needs to be used every time you turn on your phone and when it has been in sleep mode.
Press Settings.
Press Security & privacy.
Press Fingerprint ID.
Press Fingerprint management.
Press the required phone lock code and follow the instructions on the screen to create an additional phone lock code.
Press New fingerprint.
Follow the instructions on the screen to create the phone lock code using your fingerprint.
Press OK.
Press the Return key twice.
Press Screen lock & passwords.
Press Password.
Key in the current phone lock code and press None.
Press REMOVE.
Press the Home key to return to the home screen.