I just exchanged my iPhone 3g for a new one because of battery life issues. I just tried to restore my custom 2.1 firmware and am getting an error 6 in iTunes. I tried going into DFU mode and then I also tried without entering DFU mode. Nothing appears to be working. Anyone have any advice?
EDIT: Nevermind, I'm an idiot and didn't realize I wasn't actually in DFU mode.