Right, I have an iphone 4, AT&T (I'm in Ireland so I use gevey sim), wanted ios5 and heard that it was ok to upgrade as long as you preserved the baseband, was careful to preserve the baseband- 4.10.01, and after a bit of a kerfuffle, managed to upgrade to ios5, now I'm stuck at authentication on the itunes screen, how do I bypass/avoid this? I'm really stuck here guys, any advice