Hey all, my cousin just upgraded his iphone 3 and got the iphone 4. They turned the network off from his iphone 3 and he left me with that one. I used my sim from my old att phone and put it in the iphone 3. Do I still need to jailbreak anything considering they turned the network off? Im able to use wifi but not getting any other internet from it. Thanks.
I agree with totalimmortal, and wanted to add. If your SIM card is active, then the iPhone will just pick-up AT&T's network settings automatically. Since the phone is already activated, you don't need to "Hack-tivate" it with a jailbreak.
