Just to add to this post. Be sure not to use this method on a jailbroken device. It will get stuck at the boot logo and a full restore in iTunes will then be required. This method is faster than a restore and perfectly fine for stock devices.You can also open the Settings app on the device and go to General>Reset>Erase All Content and Settings. I've never used this feature so I don't know if it's faster than doing a restore.
This is unnecessary. A restore will erase the data and nothing else is required.there is one ... I gotta look I am certain I have the App in my iTunes
meanwhile check this one out
I think you misunderstood the context of my reply to her. I meant that the app she posted isn't going to do anything a restore wouldn't do.I think the FBI may disagree with that. I think I'll that does is wipe of the encryption.