I have a 3G on 2.1 firmware and am on Orange. I have a data plan that seems to work ok on orange with my normal phone (Nokia N82)but when I put the sim into my iphone with a sim solution it will not connect to the data plan error message is "Could not activate cellular data network: You are not subscribed to a cellular data service". I am subscribed to an Orange Data plan. Is there some sort of settings I have to put into the phone. I have the 3G icon up on the phone and think all switched on. Any help please.