How To Jailbreak on iOS 4.0.2 by Pwnage Tool Using iPhone 3GS [Complete Guide]

Now you can jailbreak your iPhone 3GS on iOS 4.0.2 using Pwnage tool as it is not the official release. If you are using iOS 4.0.1 which is jailbroken by using JailbreakMe then you can continue without any updating. You can also jailbreak it again by the same Pwnage tool if you have mistakenly updated to 4.0.2. By using this tool you can only jailbreak your iPhone 3GS old bootrom. Remember to keep your backup files before going forward. Make sure you are using iTunes 9.2 or later.

STEPS

1. Synchronize your device with computer or Mac and run iTunes.

2. Download (http://www.megaupload.com/?d=63NSJXYL) the Pwnage tool and iOS 4.0.2 firmware for your device Place all the files on the desktop.

3. Run the Pwnage tool application and click to select your device.

4. Auto detection for the relevant firmware of your device will be done by Pwnage tool.

5. It will ask you “Do you have an iPhone contract that would activate normally permally through iTunes?” click on No.

Click on Yes only if your device supports AT&T, as it will update your current baseband to the latest one.

6. Now Pwnage tool will create the jailbroken ipsw firmware file for your device.

This is successfully verified by the “ihaz Success” screen given below.

7. You must restore your iPhone to the 4.0.2 firmware, just after the creation of ipsw file by clicking on your iphone icon given at the side panel of itunes.

8. It will be done by first keep pressing Alt button or Shift button if you are using Windows, of your keyboard and then click on Restore button in the iTunes panel finally release the Shift key. By doing this you will be able to select the location for 4.0.2 firmware file. Select the required ipsw firmware file and click the Open tag.

9. That’s all you have to do, remaining tasks will be done by iTunes automatically. Installation bar will be appearing on your screen and after installation your device will be rebooting automatically. Your device has been jailbroken successfully.