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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.
1. Find "Fingerprint Manager"
Slide two fingers downwards starting from the top the screen.
Press the settings icon.
Press Lock screen & security.
Press Fingerprint Manager.
2. Add fingerprint
Press the required setting.
Press DONE and follow the instructions on the screen to create an additional phone lock code.
Press NEXT and follow the instructions on the screen to add your fingerprint.
3. Turn off use of phone lock code
Press Screen lock and key in the current phone lock code.
Press YES, REMOVE.
4. Return to the home screen
Press the Home key to return to the home screen.