I searched for the threads and read what apple has to say about it on the apple site. I have done a reset "erase all content and settings" for kicks I connected it to my computer and it showed my phone number. I did not do a restore from backup or anything like that. it then said something like "waiting for activation" is that normal? is DFU restore the solution? should I take the sim card out before selling it? will they have any problems when they are trying to activate it? I read that, they'll need a NEW sim card if they wish to activate it with at&t or they have to unlock it. I am just trying to avoid any problems and be informed, in the event that the buyer starts asking me questions. Also to avoid any potential problems with my at&t account.