I don't think you will have a problem. It says this "Eligible trade-in: eligible iPhones in good and fully functional condition". I don't think they are expecting perfect used phones. When I traded in my 4S, they didn't even examine it. They just turned it on checked my IME's on my new i6 and the 4S and that was it. As long as you ordered or bought your i6 before 9/30 you are good to go. I brought it to a store though for an immediate credit, didn't want to mail it in.