Howdy, So I upgraded to the iPhone 5 (using the device upgrade swap method and whatnot); now I have an iPhone 4S just sitting here that I'd like to unlock and sell. I submitted a request through this link: https://www.att.com/deviceunlock/client/en_US/? But I keep getting denied, with this error message: From my understanding, the 4S is no longer under contract (thus nullifying the first possibility in their explanation) and I've submitted using the phone number that was associated with it (mine), both as a current customer and former customer (denied both times). So I'm not sure. Am I doing something wrong? Anyone have any advice? Thanks! //Related, when I'm ready to sell it, I just go to Setting -> General -> Reset -> Erase all content and settings ... then pop the SIM out, yes? EDIT - Should I do the above (perhaps sans the SIM removal) before submitting an unlock request? Could that be the/an issue?