From ModMyiFone - Wiki
This is a video tutorial i asked one of my friends to make with his hi-def camara.
It has three parts
Requirements:
Windows (not sure about this, iPhuc may be usable with leopard or tiger...)
OSX Tiger or Leopard
iTunes
Internet Connection
Lots of Time
Part One( this he did not make,
but you need to follow this in order to get your phone into dfu mode )
http://www.youtube.com/watch?v=YakjwxB3nQU
Part Two
http://www.youtube.com/watch?v=Xxk6tEeb-fs
Part Three
http://www.youtube.com/watch?v=WxIYk80BWu4
the links you need are:
http://ipodtouchmaster.com/1.1.3_downgrade.zip
http://www.tclan117.com/iPhone_and_Friends/Blog/Entries/2008/2/11_Jailbreak.Jar.html
and
http://code.google.com/p/independence/
if you have any pressing questions or comments email me at tcwebsiteideas@mac.com
THIS IS TIME CONSUMING, SO MAKE SURE YOU HAVE AT LEAST 3 HOURS TO DO THIS!!!
I DO NOT TAKE RESPONSIBILITY FOR WHAT MIGHT HAPPEN TO YOUR PHONE!!!