Its AT&T, and my phone is cingular, so i figured the sim card would work in it. But when i put it in there it says NO SIM CARD RECONIZED? do i need to go to an AT&T/Cingular store?
Yeah i got it to work, just had to get an unlock code. Any of you out there with the 8100 know of any special features that took you a while to find out?