anySIM is here: open source GUI iPhone unlock app {Engadget Mobile}

Oct 5th 2007 6:27PM I had the same issue and repeated the process twice in the hope it would fix itself. Seems like a reset of the Firmware doesn't reset all the files.

However, in the end I followed the following instructions and it worked for me.

http://macapper.com/2007/09/11/download-iphone-unlock

Good luck!