I am getting a strange error when I try to do this. I am running a 3.0.1 jailbroken 3gs and itunes 9. I have never messed with any of the carrier files and I am on windows 64bit. Everything runs smooth then i go into itunes and click the ipCc file. It goes to the updating carrier settings screen then gives me the error message " The phone "Connor's Iphone" could not be updated. An unknown error occured (0xe80003D). Anyone know how to fix this?