To format an iPhone locked by a security code will need to have the latest version of iTunes and a USB cable to connect your phone to your computer. Aismismo, the device must be updated to iOS7.
The first step to restore the iPhone is off, remember to do so must hold down the button (top button) until 'Off' appears.
With the phone turned off, press the Home button, while tightening, connect the USB cable to the terminal of course the computer. You will see that your iPhone screen goes blank and automatically turns on iTunes mode. When this happens, you can stop pressing the button. If the Home button on your mobile phone does not work, you can repair it yourself by following these steps.
Now is the time to open iTunes. It is very important that do not open before this step. You see, without moving, iTunes detects that your iPhone is in recovery mode and restore advises you. Press 'OK' and then click 'Restore iPhone'.
A window, tap on 'Restore and Update' to continue restoring your iPhone locked appears. Now the restoration process which may take a few minutes will start almost even an hour. Remember that you can not disconnect the iPhone from the computer.
It is very important that during this process not touch anything in iTunes or your iPhone. You will see the mobile screen is changing because it is synchronized with the program to restore. When the process is finished a window will inform you that your iPhone has been successfully restored, press 'OK' will open.
You will see that your iPhone is still working, do not touch anything. When the bar that appears on the screen of the mobile is complete, it will turn on and the word 'Hello' appear, you must follow the steps to set it up again.
After activating the location, it will ask if you want to perform a backup or leave it just left the factory, choose the option to leave again. Enter your Apple account, you accept the terms and you will see a screen to reset the security code. Now you can enter the code you want.
And presto! If you have backed up in iTunes, you can now enter to retrieve applications and images. This process is used for all models of iPhone, if earlier than 5, here's how to install iOS 7. If you want to
format an iPhone that has no code, there's an easier way to do it.