Hi, this message is intended for exNavy since he was the one that posted the awesome walk-through for hacking the sim in order to use another phones card on the iPhone. My problem is this, I don't have an intel mac, so I used my brothers mac...did the hack, everything went by smoothly, again thanks to the great step-by-steo instructions. The problem is that when I got home and got on my mac, iTunes doesn't recognize my iPhone. It gives me an error message, and obviously doesnt allow me to sync. Is there a sinlge file that I need to change or delete on my mac to fix this, or am I screwed since I did all the hacking in another computer? Please any help is welcome! Thanks again guys and keep up the great work.