Find "Change Passcode"
Press Settings.
Press General.
Press Passcode Lock.
Press Change Passcode.
Change lock code
Key in the current lock code.
Key in a new lock code.
Key in the new lock code again.
Key in a new lock code.
Key in the new lock code again.
![Apple iPad 2 with 3G iOS 4 Apple iPad 2 with 3G iOS 4](http://wmstatic.global.ssl.fastly.net/ml/7290921-1736552.png?width=480&height=480)
Exit
Press the Home key to return to standby mode.