If you're amongst the lucky ones that are able to have their carrier officially unlock their iPhones, here's a quick tip as to how to properly do it. As a matter of fact, some carriers will send you unclear instructions once your unlocking request has been approved.
There are two ways to use an unlocked iPhone: you can either re-activate it every time you insert a new sim card in it or unlock it for good so you won't have to go through the process of activation ever again.
Here's the breakdown:
