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Search in Samsung Galaxy S II
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Turning use of phone lock code on my mobile phone on or off
If you want to prevent others from accessing the contents of your mobile phone (such as pictures and messages), you need to turn on the phone lock code. Once done, it needs to be keyed in when you turn on your mobile phone.
Please note: the phone lock code doesn't protect your mobile phone against unauthorised use. Your SIM is protected by turning on your PIN.
Tap Applications.
Tap Settings.
Tap Location and security.
Tap Set up screen lock.


Choose one of the following options:
Create phone lock code using pattern, go to 2a.
Create phone lock code using a PIN, go to 2b.
Create phone lock code using a password, go to 2c.
Turn off phone lock code, go to 2d.
Tap Pattern.
Tap Next twice.
Tap and drag a point to connect at least four points.
Tap Continue.
Repeat the selected phone lock code to confirm.
Tap Confirm.
Tap PIN.
Key in the required phone lock code and tap Continue.
Key in the phone lock code again and tap OK.
Tap Password.
Key in the required phone lock code and tap Continue.
Key in the phone lock code again and tap OK.
Tap None.
Tap the Home key to return to standby mode.