Jailbreak iPhone 3.1.3 on Windows Earlier I have posted on how to jailbreak iPhone 3G/3Gs 3.1.3 firmware on Mac OS X using Spirit jailbreak tool. This time I will tell you how to jailbreak the iPhone 3G or 3GS running 3.1.3 firmware OS on Windows using Spirit. Using Spirit could help you do the iPhone 3.1.3 jailbreak process easily. Just follow the simple steps given below to jailbreak iPhone 3G or 3GS 3.1.3 firmware on windows using spirit.

1. Download and install iTunes if you don’t have it.

2. Take a backup of your iPhone’s data so that you could restore it back if any data loss is caused due to the jailbreak.

3. Download Spirit Jailbreak tool for windows.

4. Connect the iPhone to your computer.

5. Right click on ” Spirit.exe ” and click on ” Properties “.

Also Read: Jailbreak iPad 3.2 firmware with Spirit

6. Change the compatibility mode to ” Windows 98 / Windows Me ” if you are running Windows Vista or Windows 7 and check the ” Run this program as an administrator ” box and Apply the changes.

7. Launch Spirit.

8. Click on the Jailbreak button.

Jailbreak iPhone 3.1.3 on Windows

9. Now wait till your iPhone 3G or 3GS with 3.1.3 firmware is jailbreaked.

10. When finished, click on the ” Quit ” button.

That’s all! Now you have a completely jailbroken iPhone running 3.1.3 firmware with you.