How to use GreenPois0n to Jailbreak iPhone 4, 3GS, iPad, iPod Touch iOS 4.1/4.0


13.10.2010

How to use GreenPois0n to Jailbreak iPhone 4, 3GS, iPad, iPod Touch iOS 4.1/4.0

In the following guide you will learn how to jailbreak the iPhone 4, 3GS, iPad, iPod Touch 3G and 4G, running on iOS 4.1 or 4.0, with a simple tool released yesterday: GreenPois0n. The software version RC3 on the moment, meaning the final version will be soon delivered, but it’s stable enough for us to write a step by step guide. This process will be simple, and the instructions will only take a few minutes. At the end of the guide, you will end up with a fully jailbroken iPhone or any other device, that will not be patched by an iOS upgrade.

Before we start, let’s talk a bit about the GreenPois0n tool and what it has to offer. GreenPoiS0n uses two bootrom exploits: Shatter and a userland exploit provided by Comex. These make the tool offer you two major benefits: an untethered jailbreak, meaning you will only have to follow this guide once, without worrying about losing the jailbreak ability and, thanks to SHAtter, the jailbreak will not be patched by future iOS updates. Apple can only fix the whole using a hardware replacement, in this case of the A4 chip ( chances = 0 ).

Compatibility: GreenPois0n works only on devices with A4 chips, meaning the iPhone 4, iPod Touch 4G, iPad, iPhone 3GS and iPod Touch 3G. The lines bellow are available for the listed devices. At the moment, only Windows and Linux users have the joy to jailbreak their devices using GreenPois0n. A Mac version will soon be released. Also, you need to have iOS 4.1 installed already, so if you haven’t use our guide to do it.

The guide will upgrade your baseband, so if you count on the unlock have a little patience until a newer Ultrasn0w version is released. At the moment only iPhone 4 users can unlock it, by using TinyUmbrella to update for iOS 4.1, following the guide bellow and then unlocking with Ultrasn0w ( the title says 3GS, ignore it because the steps are the same ).

GreenPois0n on all iDevices

How to use GreenPois0n to Jailbreak iPhone 4, 3GS, iPad, iPod Touch iOS 4.1/4.0
  1. Download GreenPois0n for Windows or Linux.

  2. Connect the device to the PC, using an USB cable and then turn it off.

  3. Run GreenPois0n with Administrator Rights ( right click -> run as Administrator ) and then click on the “Prepare to Jailbreak (DFU)” button.

    Step 3

  4. Put the iDevice in DFU mode, by following the instructions on the next screen. If you succeed to reach DFU and GreenPois0n does not recognize it, press once more on the “Prepare to Jailbreak (DFU)” button.

    Step 4

  5. Once in DFU, click on the “Jailbreak” button.

    Step 5

  6. All you have to do now is to wait for the green bar to fill, the iDevice to reboot and a “Home” screen to welcome you on the jailbroken device.

    Step 6

  7. A new “Loader” icon will show up on your springboard. Touch it, select Cydia and then Install Cydia. Once completed, the “Loader” icon will want to be removed. Choose whatever you want, and your iDevice will reboot.

  8. Done. You have managed to fully jailbreak the iPhone 4, 3GS, iPad, iPod Touch 4G / 3G iOS 4.1 / 4.0 with GreenPois0n.

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