So I have a iPhone 3G with the newest baseband and it works with my AT&T prepaid sim card with no problems. As soon as I jailbreak it the phone refuses to recognize the same exact SIM card. Can anyone help me with this? I've tried 3.0,3.0.1, AND 3.1 firmwares from PwnageTool 3.1 (3.1) and RedSn0w (3.0,3.0.1) and all have the same results.