FYI: Freshly New Installed of WinXP SP2 (July 27, 2008).
Hey guys my problem started out with the 1604 error as i attempted 65 times to upgrade to Custom 2.0 FW. I seek help from forum mod dTUBewhere he adviced me to follow http://iclarified.com/entry/index.php?enid=1572 as numerous attempts with fail results. He asked me to upgrade my 1.1.4 FW to the ORIGINAL 2.0 FW and then if that was successful and then put it back in recovery mode and restore it to Custom 2.0 FW.
The Original 2.0 FW was successfully installed on my iphone and i put the iphone into recovery mode and attempt to restore it with Custom 2.0 FW, which failed and result in a window saying "an unknown error has occurred (6)".
I then tried to downgrade it back to 1.1.4 FW with iclarified tutorial http://iclarified.com/entry/index.php?enid=1504. but 7.5 itunes can't detect the iphone with Original 2.0 FW and that window popped up advice me to upgrade iTunes to 7.7 instead.
So i tried many things include going back to 7.7 and then 7.5 itunes to downgrade it wouldn't work.
this all started out as attempt ot upgrade to custom 2.0 FW and now i am stuck with Original 2.0FW and can't use my phone for anything.
I hope some1 has a solution or a dev team can create a solution that doesn't involve making a CUSTOM FW to jailbreak-> activited = > unlock. Because now i can't do neither. =(
Thanks in Advance.