Hi, I just switched from T-Mobile to at&t gophone ($50 unlimited) because I wanted to get 3G (was sick of edge with t-m). I am using a jailbroken iphone 4 with redsn0w. Version: 4.3.5 (8L1) I got the sim to work using a Gevey sim and the 3G icon appears at the top but it's not connected and I cannot use any data (even though I pay for unlimited). Is there a way to bypass that? I was thinking that since att is using my imei to know that I have an iphone, maybe I can change the imei? is that possible at all? Or if not, is there any other way to get data to work? Thanks!!