upgrading phone from 4G to 8G - SIM card question


New Member
Jun 27, 2007
Hi all,
I bought a 4G iPhone yesterday because my local AT&T store ran out of the 8G. Well, I found out later that the 8Gs were still available at the Apple store. Since I've already activated my 4G phone, do I have to go through the activation process again with the 8G? With all the problems some people are having, I am a bit concerned. I'm hoping it's as easy as switching out my SIM card from the 4G to the 8G (without having to go through the activiation again).

Has anyone switched iPhones? If so, any insight would be much appreciated.