How to Jailbreak Your iPhone 3GS, iPhone 4, iPod, iPad Using Limera1n (Windows)
These are instructions on how to jailbreak your iPhone 3GS and iPhone 4 also the iPad, iPod Touch, and all other deivices using Limera1n for Windows. Limera1n supports iOS 4.0, 4.0.1, 4.0.2, and 4.1. The iPad firmware is supported up to 3.2.2 which is the latest one…
**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.
Open your web browser of choice and navigate to http://www.limera1n.com. Click the Download for Windows link at the bottom of the screen.
When prompted save the download to your desktop
Double click the limera1n.exe file from the desktop to launch the application
Click the large make it ra1n button
You iPhone will now be placed in recovery mode.
Press both the power and the home buttons.
When Limera1n asks you to, release the power button.
Your phone will now be in DFU mode
As limera1n performs its exploit you will see the image of a lime raindrop on your iPhone.
Limera1n will let you know when it is complete.
After you power back on your iPhone you will see a new icon on the SpringBoard entitled limera1n. Press it to continue.
Once Limera1n opens select Cydia then press the Install button at the top right of the screen.
Once the Cydia installation has completed you must reboot your iPhone.
When your iPhone has restarted you can run Cydia.