1. Find "Select screen lock"
Slide your finger downwards starting from the top of the screen.
Press Select screen lock.
2. Create phone lock code
Slide your finger across the screen to connect at least four points and press NEXT.
Repeat the selected phone lock code and press CONFIRM.
3. Select PIN
Key in a four-digit PIN and press NEXT.
Key in the PIN again and press OK.
Press the required setting.
4. Turn off use of phone lock code
Press Select screen lock and key in the current phone lock code.
5. Return to the home screen
Press the Home key to return to the home screen.