I was running 1.1.1 unlocked with IPSF and I decided to try to upgrade to 1.1.2, so i installed the OktoPrep and then updated to 1.1.2. The problem is, I can't seem to get past the activation screen. I tried to restore to 1.1.1 but whenever I try I immediately get an "iPhone was not able to be restored, unknown error (1)" What should I do? Is there any way I can activate 1.1.2 without AT&T?