How to Jailbreak Your iPhone 3GS, iPhone 4, iPad, iPod Touch Using RedSn0w (Windows and Mac) [4.3.3]
These are instructions on how to jailbreak your iPhone 3GS on the 4.3.3 firmware using RedSn0w for Windows. The Mac version of this tutorial is absolutely the same
Make sure not to update to iOS 4.3.3 if you need an unlock as one is not yet available unless you opt to use the iPad baseband.
IMPORTANT FOR UNLOCKERS
During this process you can update your baseband to the 06.15 version. If you are on 05.14 or 05.15 or higher you will need to do this to unlock. You do not need to do this for jailbreak only. Please read the following very carefully before deciding whether to do this. Read more…