Jailbreak iPhone 3G on 4.0, 4.0.1, 4.0.2, 4.1 with redsn0w

Download the program here: http://blog.iphone-dev.org/post/1160213613/redsn0wier

Download your firmware you are currently on here: http://www.felixbruns.de/iPod/firmware/

Open the program

Select your firmware

Select your install options

Follow the on screen intrusctions to put your device in dfu

Your done!

A more thorough tutorial is posted here: http://www.youtube.com/watch?v=eF1CC7QofF0

Can be jailbroken on 4.0 and 4.0.1 with Jailbreak me

To jailbreak simply load JailbreakMe on your iPhone 4 and slide to jailbreak

Tutorial is posted here: http://www.youtube.com/watch?v=hL_ylxjso4s

Note: JailbreakMe is not a bootrom exploit.

Can be jailbroken on 3.1.3 and 3.1.2 with Spirit

To jailreak simply go to http://spiritjb.com

Then download the program.

Run the program your mac or windows

Click Jailbreak with your device plugged in

Then you should be a good

A more detailed tutorial located here: http://www.youtube.com/watch?v=KT-WRDqCXzI