iPhone 1.1.1 to 1.0.2 downgrade instructions released!
Well would you look at that, instructions are now available for downgrading your iPhone from 1.1.1 to 1.0.2. It won't downgrade your baseband, meaning so far you can't re-unlock an iPhone that's been 1.1.1-ified, but it's still 1.0.2 in all its third-party application glory. The iPhone Dev Team folks are working on a way to downgrade the new firmware to let people unlock their phones again, but for now AT&T users sitting pretty, and non-AT&T folks can at least do the WiFi thing. There's a video tutorial after the break.[Thanks to everyone who sent this in]
Read - iPhone Dev Wiki instructions
Read - Hackint0sh thread where the magic happened

















whew, thanks for posting this - I thought I'd be SOL after going to 1.1.1, then discovering there was "no turning back..."
any guesses as to whether doing this will come back to bite us, next time we want to upgrade?
Worked perfectly for me using a Mac (AT&T sim card, so the phone is back to where it was early last week.) Too bad people jumped all over Kmac on the forum when he posted his success.
I have just brought the iphone last week in the states so i guessing it has the 1.1.1. firmware.
Whats is the best process to get this phone unlocked so I can use it in the UK.
Any advice would be helpful
Thanks
aló! everyone, i just wonder how to put the new "version 1.1.1" in the oldest one "ver 1.0.2" there´s somebudy to know the way, the tutorial or video like this picture >>>> www.engadget.com/photos/o2-uk-iphone-gallery/404722/
to get (ver. 1.1.1) in iphone.I´d really thnks any kind of info.