Find "Screen lock"
Slide two fingers down the display starting from the top edge of your phone.
Press Settings.
Press Settings.
Press Security.
Press Screen lock.
Select option
You can create several types of phone lock codes. The following steps show two examples:
Create phone lock code using a pattern, go to 2a.
Create phone lock code using a PIN, go to 2b.
Create phone lock code using a pattern, go to 2a.
Create phone lock code using a PIN, go to 2b.
2a - Create phone lock code using a pattern
Press Pattern.
Press and drag a point to connect at least four points.
Press Continue.
Repeat the selected phone lock code to confirm.
Repeat the selected phone lock code to confirm.
Press Confirm.
2b - Create phone lock code using a PIN
Press PIN.
Key in the required phone lock code and press Continue.
Key in the phone lock code again and press OK.
Turn off use of phone lock code
Press None.
Return to the home screen
Press the home icon to return to the home screen.