Hello , i have a problem with my phone. It was jailbroken at 5.0.1 9A406 and i had some service failures so i restored to 5.0.1 , ehmm tried to .. i get an unknown error occurred (1). Latest itunes , clean hosts , tried with dfu mode (black screen , no connect to itunes). Once, it gave me error 21 but it had to do with unclean hosts file. so i stuck ....i think that the restore is successfull but i cant get out recovery mode.