Wrong pin code

The only way is to reflash a new firmware and wipe the coe as well as the phone clean.
To do this start itunes on your computer. Then connect your phone to the computer. Once itunes detected your phone hold the POWER and the HOME buttons down at the same time for about 10 seconds. Once the phone flashes off, let go of the POWER button and keep holding the HOME button until you see a message on the itunes telling you that your phone is detected and needs to be RESTORED. Follow directions and it will do its job. I appreciate your positive vote. Thanks