AT&T rep got my 3g not jailbroken iPhone to. Work as a prepaid gophone. However he could not do it with my other iphone jailbroken. It said it did not recognize de sim card. And it stayed on no service. Does anyone know why it did notwork on my jailbroken iPhone. Is there another way around it. Can't unlock my iPhone because of the bootloader. Is there any other ideas on how to get my phone to be useful?