Hey all, Quite frustrated here. I updated to the new 3.0.1, and at some point an error popped up saying "Unknown error 21". Fair enough I thought, restart my iPhone and update some other time. Now it just goes into DFU mode, and itunes tells me I have to restore it. But when I do that, guess what error I get? "Unknown error 21". What a huge mistake updating was! Now I have no working phone! Any idea what I can do to resolve this? Thanks.