Greetings - I've purchased a used iPhone. It did not come with a SIM card. I charged it & turned it on. I get the message NO SIM CARD INSTALLED & I also get EMERGENCY CALL message. I then downloaded Pwnage & followed the steps here: http://forums.macrumors.com/showthread.php?t=550964 I get to the "Successfully Entered DFU Mode" step & I close the Pwnage program & launch iTunes but iTunes does not detect the phone. Any thoughts? Is there a step that Im missing?