Check out how you can unlock your iPhone 4
So here is a video that shows you a way for you to unlock your iPhone 4G and below and the best thing is that you don’t need a computer to do it anymore. This is a great thing of course because if you have T-Mobile or simply live in Europe and have a GSM service, you can unlock it and use it on these other networks. Watch the video below that give a through way of unlocking your iPhone 4G. The good thing is that this Jailbreak works with the iPad, and other generation iPhones.
