1 Press "Screen lock & passwords"
Press Settings.
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Press Screen lock & passwords.
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2 Create phone lock code using a pattern
Press Password.
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Press Pattern, slide your finger across the screen to connect at least four points and repeat the selected phone lock code.
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3 Select PIN
Key in a four-digit PIN and press Confirm PIN.
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Key in the PIN again and press Done.
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4 Turn off use of phone lock code
Press Password.
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Key in the current phone lock code and press None.
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Press Remove.
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5 Return to the home screen
Press the Home key to return to the home screen.
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