Folks, help me understand the consequences of my actions. I wanted to use my in contract ATT Iphone 5 overseas and used one of many sites to do IMEI unlock. I have not connected the phone to Itunes yet. Based on what more then one site's FAQ says, once I do that, my phone will never work on ATT anymore. I don't understand why that is the case if unlock usually means it will work on any network, including the one you are coming off from. This happened with every unlock I had before with almost any phone. Will I really not be able to use my ATT SIM card anymore, even if I restore and reactivate? Will I be able to take the phone to ATT store to get it activated? Any help understanding this would be appreciated.