
These are instructions on how to jailbreak your iPhone 3GS and iPhone 4 using Limera1n for Windows. Limera1n supports iOS 4.0, 4.0.1, 4.0.2, and 4.1.
**If you have an iPhone 3GS with the new bootrom there is a bug that still needs to be fixed. Please want until we remove this message before continuing.**
Remember: Do not update to iOS 4.1 if you need the unlock. Ultrasn0w does not support that baseband yet.
Step One
Open your web browser of choice and navigate to here. Click the Download for Windows link at the bottom of the screen.
Step Two
When prompted save the download to your desktop.
Step Three
Double click the limera1n.exe...