1. Find "Sign-in options"
Slide your finger downwards starting from the top of the screen.
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Press All settings.
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Press Personalisation.
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Press Lock screen.
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Press Sign-in options.
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2. Turn on use of phone lock code
Press Add.
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Press New PIN and key in the required phone lock code.
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Press Confirm PIN and key in the phone lock code again.
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Press OK.
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3. Turn off use of phone lock code
Press Remove.
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Press Remove.
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4. Return to the home screen
Press the Home key to return to the home screen.
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