Hi all, Seems a great deal of confusion on the web regarding Iphones with message No compatible SIM. I've tried to jailbreak with redsnow but was unsuccessful (completed, but didn't work). I can't access the phone so I've no idea what baseband or firmware is loaded so I'm assuming I linked redsnow to the wrong ipsw for the phone. Can anyone help with how I find out which firmware and baseband I have or alternatively, which ipsw I should be using? The phone is a 3G purchased new (but locked to AT&T) in October 2009. Itunes has just done a recovery and update so I'm assuming it is the latest available firmware.