Greenpois0n for jailbreaking iOS 4.2.1 :: Complete jailbreaking steps & guide for iPhone 3G/3GS/4, iPad, iPod Touch 3G/4G


Greenpois0n LogoChronic Dev Team has finally released the long awaited Greenpois0n for jailbreaking iOS 4.2.1 in iPhone 4, iPhone 3GS, iPhone 3G, iPad, iPod Touch 4G and iPod Touch 3G.

Below is the guide to jailbreak your iPhone 4, iPhone 3GS, iPhone 3G, iPad, iPod Touch 4G or iPod Touch 3G.

  • Greenpois0n works on only iOS 4.1 or higher. So, you need to update your Apple iOS device with those version.
  • The recently released greenpoison is only for Mac users. So this guide is helpful for only Mac users. CLICK HERE for Windows Version of Chronic DEV Team Greenpois0n jailbreaking guide.
  • Always BACKUP your device before jailbreaking it.
  • You need latest version of iTunes 10.1 or later.

Now, follow these steps:

Download greenpois0n by any of the following:

  1. Extract the file and run the greenpois0n application (on Mac).
  2. Connect your iPhone or iPod Touch.
  3. Then, click on Jailbreak button of the app.
  4. greenpois0n jailbreak button

  5. You will then be asked to put you device in DFU mode and will be taked to the necessary steps.
  6. greenpois0n DFU mode processinggreenpois0n other steps

  7. After some steps of sleep, wake and home buttons, finally click complete button to close the application. You’ll also see a text scrolling in your device screen.
  8. greenpois0n complete button

  9. Reboot your device and a new Loader application appears on home screen.
  10. greenpois0n loader icon

  11. Click loader icon and select Cydia and then tap on Install Cydia button.
  12. greenpois0n cydia installation

  13. Reboot and enjoy your jailbroken iOS.
  14. greenpois0n :: jailbroken along with cydia
    UPDATE : If you’re looking for Windows version, CLICK HERE for its guide.