I wanted to get an iPhone 4, but didn't want to extend my contract another 2 years by using the subsidized price. My brother (on a different AT&T account) has no problem with AT&T and was eligible for an upgrade, so he ordered the iPhone and gave it to me. I went to AT&T and got a microSIM for my account to put into the new iPhone. But it's not working. I called AT&T to activate the new microSIM, which immediately deactivated my current phone. The new iPhone still flashed "connect to iTunes", and when I did so, it told me there was a problem with the SIM card. I found a guide that says I'm supposed to activate the iPhone initially using the original number (my brother's) and then swap in the new SIM card. But since my old phone deactivated when I "activated" my new SIM card, wouldn't the same thing happen to him? I'm getting desperate because I currently have no phone and don't know how to set it up. Thanks!