How to Jailbreak iPhone 4 & iPhone 3GS on iOS 4.1 using Greenpois0n [Windows]

Finally,  After a long drama Chronic Dev Team has released the most awaited Greenpois0n tool to jailbreak iPhone 4, iPhone 3GS, iPod Touch 3G, iPod Toucg 4G running on iOS 4.1 and iPad running on iOS 3.2.2.

Currently, Greenpois0n is available for Windows and Linux OS, Mac version coming soon. You can download it from here. You also can download the iOS 4.1 firmware for your iPhone 4 and 3GS here. [Download Links]

Follow these simple steps to jailbreak your iPhone 4 and iPhone 3GS using the Greenpois0n tool.

How to Jailbreak iPhone 4 and iPhone 3GS with Greenpois0n

1. Download Greenpois0n jailbreak tool.

2. Connect your iPhone to your computer via USB and restore iOS 4.1 firmware.

3. Then turn off your iPhone and launch Greenpois0n jailbreak application and hit Prepare to Jailbreak (DFU) button.

4. Follow the all on screen instructions to put your iPhone 4/3GS device into DFU mode.

• Press and hold the sleep button for 2 seconds.
• Continue holding sleep, then press and hold home for 10 seconds.
• Now release sleep button but keep holding home for 15 seconds.

5. Once your device is into DFU mode, it is ready for jailbreak ,  hit Jailbreak button.

6. Now Greenpois0n will start to jailbreak your iPhone.

7. Once the process is completed, press Quit button.

8. Restart your iPhone, now you will see a new Loader application icon on your springboard, hit this icon. Tap on Cydia and than Install Cydia.

9. After finishing you will be asked to remove Loader from your device, click Remove, then the device will restart automatically.

You are done. You will have a jailbroken iPhone with the Cydia icon on your springboard.

Related:- Jailbreak iPhone 4 and iPhone 3GS with Limera1n tool