The Apple iPhone allows you to password-protect the device to prevent unauthorised access. To gain access to the phone and features, a user must enter the correct four-digit passcode. If you enter the passcode incorrectly, a "Wrong Passcode, Try Again" message displays on the phone screen. If you enter the wrong passcode too many times in a short period of time, a "iPhone is disabled" message displays on the screen. To use the iPhone, you must remove the disabled screen to enter the correct passcode.
Attach your iPhone to the computer you originally synced it with iTunes using the supplied Apple dock connector.
Click "Start," "All Programs," and then "iTunes." iTunes recognises the iPhone device and removes the red disabled screen.
Press the "Eject" button to the right of the iPhone icon under "Devices" in iTunes.
Remove the Apple dock connector from your iPhone and computer.
Enter the four-digit passcode using the touchpad to unlock the phone.