ok I brought a iPhone 4 off craigslist and it is linked to another apple id which I didn't know. So anyways I check the iPhone if it was lost or stolen and it isn't. Then I bypass the activation with some icloud tool. Everything worked fine afterwards, itunes recognized iPhone but I couldn't get any mobile service on iphone but all apps worked. I try linking iPhone to my icloud but didn't work maybe cause previous owner, but I can sign on icloud on iPhone. Everything works just cant get mobile service when I connect my sim. Anyone know how to get it to work? maybe something like r sim to unlock it???? would that work???