Originally Posted by n99hockey
ugh...what a PIA
i got it to extract the '2.2.1 firmware ipsw' file after that it said 'preparing to restore the iphone'
THEN it tells me 'error with the restore file (1601)
now what!?
Would it be bad if I said this is much easier on a Mac?
Apple says to do this if you get this error, but
this guy didn't need to do this to get around this error. One of the commenters there said the type of cable used made a difference, though I'm not quite sure why this would matter unless it's a very old iPod cable. The guy in the first post
here also found a way around the error - I think you should try his method first before going as far as to re-install iTunes.