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  • Chronic Dev Team Releases greenpois0n, Untethered Jailbreak for 4.2.1


    The jailbreak community is buzzing and rejoicing tonight as the culmination of weeks of waiting is finally here. Earlier this evening, the Chronic Dev Team released the latest version of greenpois0n. What we have here is a nifty little conduit to free your iDevice running 4.2.1.

    Although MMi will have more insight and coverage of the release of the hours to come, in a nutshell, what we have with greenpois0n is a program that enables you to perform an untethered jailbreak. You can simply reboot without any cumbersome need to re-jailbreak. So far, however, we understand that it's only available for Mac.

    It should also be noted that caution should be exercised in rushing toward greenpois0n, as the build is believed to have been hurriedly put together. Consequently, there's only a small number of people who can presently report back on their experience with the release. So, by all accounts, please stay tuned.

    To go get the Greenpois0n untethered 4.2.1 jailbreak, click here.

    Greenpois0n
    Edit Poseidon: For anyone who gets stuck on "Initializing" you will need to hard reset your phone (hold home + power). Put your phone back into DFU mode but do not let go of the home button... Run Green Pois0n... release home button when you see code running down the screen.
    This article was originally published in forum thread: Chronic Dev Team Releases greenpois0n, Untethered Jailbreak for 4.2.1 started by Michael Essany View original post
    Comments 945 Comments
    1. g4ess's Avatar
      g4ess -
      this does not work error error error
    1. kickerman65's Avatar
      kickerman65 -
      Chpwn Mentioned on twitter to make sure to restore to a fresh Firmware if you were currently using a tethered jailbreak.
    1. TypeRBass's Avatar
      TypeRBass -
      Quote Originally Posted by Mosho View Post
      Don't do fresh restor, it's not work same problem...
      :/ Well looks like I'm not touching this release anymore then. Was this even tested before being released? Or was it just rushed...
      and has anyone gotten this to work on an iPad?
    1. steve-z17's Avatar
      steve-z17 -
      Huzzah! This is a day to rejoice! Minus the few bugs it might still have..
    1. Cer0's Avatar
      Cer0 -
      Quote Originally Posted by Thenextkiller View Post
      Why didnt you guys use redsn0w? can someone answer my shatter question
      4.2.1 i4 out of box. Did not have 4.2b3 shsh.


      To the people having issues. Are you doing the jailbreak on a clean install or trying to do it over an exisiting jailbreak. It is always best to do it on a clean install. Not a good idea to mix jailbreaks.
    1. Tario70's Avatar
      Tario70 -
      Quote Originally Posted by Thenextkiller View Post
      Its someone I trust. Because think about it, if on 4.3 the SHatter has been stopped than why not use it on 4.2.1??
      The SHatter exploit was in the A4 chipset so it wouldn't work on the 3G and 3Gs, this does. That fact alone means it isn't SHatter. Plus if I remember correctly, SHatter was a bootrom exploit which could only be fixed with new hardware, a new firmware wouldn't stop it.
    1. Cer0's Avatar
      Cer0 -
      Quote Originally Posted by kickerman65 View Post
      Chpwn Mentioned on twitter to make sure to restore to a fresh Firmware if you were currently using a tethered jailbreak.
      Also setup as new not restore from backup.
    1. g4ess's Avatar
      g4ess -
      I did a fresh restore same thing this does not work mee monik
    1. MikeT674's Avatar
      MikeT674 -
      Quote Originally Posted by Cer0 View Post
      4.2.1 i4 out of box. Did not have 4.2b3 shsh.


      To the people having issues. Are you doing the jailbreak on a clean install or trying to do it over an exisiting jailbreak. It is always best to do it on a clean install. Not a good idea to mix jailbreaks.
      I have a ip4 out of box with 4.2.1 never jailbroken this device
    1. i.Annie's Avatar
      i.Annie -
      Anyone else who can confirm a clean restore and setting your device as new will provide the functional untethered jb, please speak up
    1. DMI187's Avatar
      DMI187 -
      anyone with uploaded link yet
    1. Qiqq3r's Avatar
      Qiqq3r -
      Got a hold of this mirror from Twitter:
      For people who can't get on the greenpois0n site (it's quite hosed)
      Mediafire - Greenpois0n RC5
    1. kickerman65's Avatar
      kickerman65 -
      Quote Originally Posted by Cer0 View Post
      Also setup as new not restore from backup.
      Agreed. I never restore a backup with a jailbroken device. Only causes issues.
    1. sheezee's Avatar
      sheezee -
      This **** does not work come again!!!!!!!!!!!!
    1. Mosho's Avatar
      Mosho -
      NO! It's not work!
    1. christopherjason's Avatar
      christopherjason -
      Quote Originally Posted by kickerman65 View Post
      Agreed. I never restore a backup with a jailbroken device. Only causes issues.

      I have many times and my fones r fine.
    1. Tario70's Avatar
      Tario70 -
      Quote Originally Posted by Cer0 View Post
      4.2.1 i4 out of box. Did not have 4.2b3 shsh.


      To the people having issues. Are you doing the jailbreak on a clean install or trying to do it over an exisiting jailbreak. It is always best to do it on a clean install. Not a good idea to mix jailbreaks.
      Per p0sixninja's twitter

      p0sixninja

      Make sure you have a clean 4.2.1 install before running GP
    1. jcmorgan4's Avatar
      jcmorgan4 -
      use tinyumbrella to kick the ipad out of recovery, works like a charm
    1. richcg's Avatar
      richcg -
      Still not working wit ha clean install.
    1. KenjiTheSamurai's Avatar
      KenjiTheSamurai -
      Can't download! What's going on?