I was in the process of jailbreaking my iPhone 3G with RedSn0w (Windows) and when the "shift+click restore" process was done this popped up in iTunes: "The SIM card in this iPhone does not appear to be supported. Only compatible SIM cards from a supported Carrier may be used to activate iPhone. Please insert the SIM card that came with you iPhone or visit a supported Carrier's store to receive a replacement SIM card." Which I don't have by the way because I'm on the T-Mobile network. Before I started jailbreaking I had updated to 3.0 from 2.2.1 directly via iTunes which I'm assuming was correct.. So what did I do wrong?