Unlocking the Screen With Your PIN or Password
1.Press Power Key to wake up the phone.
2.Touch and hold 
icon to unlock the screen.
3.Enter the PIN or password you set.
4.Touch OK.
Disabling Screen Lock Settings
If you have created an unlock pattern, PIN or password, you can disable it.
1.Touch Home Key > 
> Settings > Location & security > Change screen lock.
2.Draw the screen unlock pattern or enter your PIN/ password you have created.
3.Touch None.
Protecting Your SIM Card With a PIN
Every SIM card comes with a PIN. The initial PIN is provided by your mobile phone carrier. It’s best to lock your SIM card as soon as you can.
1.Touch Home Key > 
> Settings > Location & security > Set up SIM card lock.
2.Tick the Lock SIM card check box.
3.Enter the PIN you’ve been given and touch OK.
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