I have an official iPhone with official AT&T sim. I used Pwnd to jailbreak, but also unlocked the BB in the process to use it while traveling. I care more about the AppStore than Installer, so I wanted to do a straight upgrade to 2.0 with iTunes 7.7.
Well, it failed...
After the whole process is completed, the iTunes enters in a state where it tries to connect to the AppStore and just stayed there, eventually timing out with error (-4). Tried multiple times, didn't work.
I then tried to go the DFU mode and restore back to 1.1.4. This eventually fails with error (1600).
Should I have first undone the pwn before upgrading to 2.0? If so, then let this be a warning to others. I somehow was under the impression that this was not needed.
And what now? Are there any ways to get out of this or should I just suck it up and buy that 3G after all?