4.2.1 Untethered Jailbreak Out

Author: BigBoss  //  Category: Jailbreak, News

It looks like posixninja beat Musclenerd to the punch. Green poison RC5 is out and provides an untethered jailbreak.  The exploit used is already known to be patched in the upcoming 4.3 firmware so it made sense to get it released as soon as possible. Currently only the OSX version is out but a Windows version is on its way out as well. You can it from http://www.greenpois0n.com/

Note: this version does not provide hacktivation.

And a note from Musclenerd:
For those having trouble getting Cydia via the GP Loader, just let redsn0w install it (don’t choose the Monte option)

For those having problems in osx v10.5.x try this: http://www.gadgetsdna.com/jailbreak-ios-4.2.1-with-greenpois0n-rc5_2-on-mac-os-x-leopard/8634


BigBoss Authors: Mark Bruce & Kory Lee

73 Responses to “4.2.1 Untethered Jailbreak Out”

  1. GMEZG Says:

    Thanks for the update Boss :)

  2. Duality Says:

    Woo! Finally. Still waiting for the Windows version!

  3. Rainmanware Says:

    It is already, check again

  4. fusen Says:

    ‘Beat musclenerd to the punch?’ I didn’t think MN and the dev-team were even trying to release quickly for 4.2.1? afaik they are purposely waiting for 4.3

    Fair enough you could say something like “managed to win the bet against musclenerd” but no one beat anyone to the punch

  5. beakhand Says:

    is there a way to do this without pressing the sleep button mine is broken

  6. James Says:

    If I have my iPad tethered what would you guys recommend? Should I do a restore then jailbreak or should I just rejailbreak with greenposion? Thanks

  7. GMEZG Says:

    Any word on the unlock?

  8. Anonymous Says:

    Does this mean we could use this to get untethered jb on a 3gs. Baseband 5.12.01 and then use the devteam unlock for untethered jb/unlock?

  9. Arrow Says:

    Does this mean we could use this to get untethered jb on a 3gs. Baseband 5.12.01 and then use the devteam unlock for untethered jb/unlock?

  10. Anupam Says:

    Anyone got it to work ?

    I get a – 503 Service Temporarily Unavailable – Cant even get to the website !

  11. Nick Says:

    I get the same, site says its offline

  12. Chema Says:

    Please someone who have the software to win and mac please upload to mirror…

    Many thx!!! And Congratullations!!

  13. KidRicky Says:

    Kinda confused, Here it says Green poison RC5 but when you go to Green poison website to download the file you are downloading is RC4.zip.. Is it really RC5 and forgot to change the name? Thanks :)

  14. Fivetwo Says:

    If my iPad is 3.2 and jailbroken, and I want to keep everything I have, should I upgrade to 4.2.1, then jailbreak, or restore to 4.2.1 and then jailbreak?

    I’m assuming the update would kinda erase the previous jailbreak making it ok to do.

  15. sean Says:

    anyone got a mirror? GP site is down

  16. iknowyouwantme Says:

    When the Windows Version come out ??

  17. JBT Says:

    For ones who can’t load from the link, if you google with the name, you’ll find other places…

  18. d Says:

    when will be windows version out

  19. AC Says:

    Got the Redsn0w to work however Cydia crashes

  20. Crzyass Says:

    would this work on the ipod

  21. Hamed1920 Says:

    Quran

  22. HelpaMe Says:

    WordPress 3.0.4 is available! Please notify the site administrator.

  23. dd Says:

    Hi.
    When i installed cydia the guy in the store told me not to reset,
    close or reboot the phone but only when the new jailbk for 4.2.1 is
    delivered. otherwise my phone will get jammed…. does this mean i can now reset my i phone 3gs?

  24. tz Says:

    I get 4 errors on myiPod touch (something about not being able to find fs_mount and a few others), it says greenp0ison initializing and stops and isn’t jailbroke.

  25. Reboq Says:

    Greenpois0n.com site is back, with a new version RC5_2
    This one is working (including installing Cydia from loader)

  26. Anupam Says:

    But only MAC

    Waiting for windows version

  27. Anonymous Says:

    JailbreK with green poison. That’s what I did for my iPad. I did not chisevti load Cydia.

  28. muxxa Says:

    i’ve a question: i succesfully jailbreaked my iphone 4 with greenpois0on and installed cydia. I wanted to download AptBackup to reinstall my cydia apps but it can’t be found in cydia. First i thought the bigboss source isn’t installed but it is. Please can somebody help me? It will be damn much work to reinstall all cydia apps without aptbackup!

  29. Anonymous Says:

    today r tommorrow

  30. Robert Says:

    The website is beyond slammed and you are looking at an old cached copy. RC5-2 (I think) is the current version. But wait a couple days for the traffic to die down.
    It feels analogous to that week long traffic jam in China they reported on a few months ago…

  31. mklpickle Says:

    I was able to successfully use greenpoisOn (RC5-2) on my mac. Once installed, Loader did not work. Used latest Redsn0w to get cydia installed. Now have a working untethered jailbroken 4.2.1 iPhone 4. I downloaded from mirror.

  32. Reboq Says:

    Oh, ok, find someone with a Mac…

  33. Reboq Says:

    When i downloaded it it was the original site.
    The download is RC5_2

  34. GMEZG Says:

    Does any one know if ultrasn0w will work once jailbroken using greenpois0n?

  35. GMEZG Says:

    For iphone 4 of course

  36. German Peter Says:

    @ BigBoss: Please correct “Updated 12/08/2010″ to todays date

    Lall: Is GrenPoison goot for 3GS with NEW ! Bootrom ???

    Thanks Peter

  37. Jay Says:

    I have a question about jailbreaking over a jailbroken device. I have an iPhone 4 with iOS 4.2.1 and jailbroke with redsn0w 0.9.6 rc8. Unfortunately, redsn0w was a tethered jailbreak. Now that greenpois0n is out and is an untethered jailbreak, I want untether jailbreak my iPhone 4 with iOS 4.2.1.

    I have never tried jailbreaking on top of a jailbroken phone. Do I need to restore the phone back to factory settings first before I use greenpois0n? Or can I use the greenpois0n jailbreak ontop of my redsn0w jailbroken iPhone?

    Any help and clarifications is very much appreciated!

    Thanks! :)

  38. Ghost Says:

    Windows users stay far away from this

  39. Anupam Says:

    @Ghost – Why do you say that ?
    Greenpois0n is now up with the RC5-2 for windows.
    I just downloaded and jailbroke my iPhone 4 – Worked as described – took me 5 minutes.
    No issues at all. Working fine …
    Thanks Guys for the hard work behind the tool.
    Cheers.

  40. German Peter Says:

    BigBoss writes in his JB-table at 3GS that GP is “great for older bootrom”.

    That means: new bootroom 3GS not possible/recommended?

    I ask because we tried a 3GS-new-bootromm with GP and no JB came !!

  41. Colas maman Says:

    Thanks

  42. Jude Says:

    No need to restore. I was in the same boat as you. iPad tethered. You can run RC5 and it will override the tethered jailbreak. I just performed it and to make sure I rebooted my iPad from SBSettings. everything ran smoothy.

  43. German Peter Says:

    Ahhhh! “GreenPois0n RC5_2 is up! Brings various bug fixes, …”

    That suceeded to JB the 3GS with NEW bootrom.

  44. Dan Says:

    Win version of GP works fine – thanks Chronic Dev team!

  45. Itoucher Says:

    I just jailbroke my ipod4.2.1 with green poison for windows, after a few tries I got cydia to download, but there are no sources and when I try to add any, cydia quits to home or says the it can’t find the source url

  46. Demigod121 Says:

    Google ‘Cydia Crash Fix’ and you’ll find a step by step answer. It involves deleting some files on your iphone/pad and rebooting it.

  47. bob Says:

    you will have to rejailbreak with greenpois0n however as far as i know this will upgrade your baseband and lock your phone until they have updated the unlock. but once again this is as far as i know i dont reallystay up to date on iphone jailbreaks as i only have an ipod touch 2g mc and 3g

    also you can let your phone die/reboot you will just need to connect it to the computer and run redsnow or whatever to keep your jailbreak

  48. bob Says:

    as far as i know you cant looks like your stuck just hope they release a jailbreakme3.o but im not too sure anymore since i havent heard an update in awhile…

  49. bob Says:

    i woulld but i dont want to risk any copyright problems

  50. Botcher Says:

    I’m in the same boat.

  51. Peter Says:

    Hey Boss,
    Hey All,

    Just here to share with you ky experince with the new RC5JB.

    I did my first JB with JBme.com under 3.2.1. I installed 4.2.1 on my ipad weeks ago. Today i used the new Windoof RC5 JB and i had a lot of problems, because the previous JB under 3.2.1 was not completly deletedt with the FW Update 4.2.1. i had a lot of chrashes esp. with the Ipod and Video app and with yourtubeHD. Finally i did a reset and installed the ipad completly new. Now, after a fresh JB with RC5 no problems at all beside the Teleboy app (Swiss T)V and Springboard, springboard is crashing if i watch TV and change channels to quick. I have no idea why, maybe you guys can help. Thx a lot, Regards, Peter

  52. PJ Says:

    Anyone else having issues with ModMyi’s APT repository timing out? I did the 4.1 to 4.2.1 update (restore and re-jailbreak), no issues. But my aptbackup restore failed because the repo is timing out. Any ideas?

  53. eid Says:

    hey there, i’ve jailbreak my iphone but there’s no repo for bigboss, how can i solve that?!

  54. xxdesmus Says:

    What in the heck are you referring to? No copyright problems exist. In fact, legally you are in the clear because they showed that (in the US at least) you have a legal right to unlock and jailbreak your device.

  55. elvisfan Says:

    Hey Boss,
    Hey all,

    Another problem with the new Greepoison JB under 4.2.1, i am not ablle to buy any apps out of the cydia store, the purchase button (top right) dosent work at all, if you click in the app buy now, you have a black screen, please let me know that i am not alone ;) with this issue

    Regards, Peter aka elvisfan

  56. zhangyoufu Says:

    Me, too ;)

  57. Boo Says:

    Will this unlock my iPhone 4g? If so will it unlock the carrier on the iPhone 4G?

  58. Nod Aicrag Says:

    I jailbroke a few iphone 3Gs before, but this time I have a big problem. I bought an iphone on ebay which was new. Now that it is stuck in a recover loop, I’m not sure if I caused this, or because I jailbreaked this with RedSnow on windows 7, but I think it was a baseband of 5.14.x I found something online that says not to jailbreak and unlock an iphone 3gs to 4.2.1 with only basebands: 01.59, 05.11.07, 04.26.08, 05.13.04, 05.12.01 and 06.15. Is this true? If so, please update the info so others won’t brick their phone like I did 1 hour ago. Can anyone help? Any ideas. Everytime I try to shift+restore, the ipsw file restore process begins, but then I get a message from itunes that says unknow error. Please help :)

  59. Anonymous Says:

    What about 3gs with new bootrom?

  60. Jay Says:

    @Nod – Did iTunes report Error 1013 and abort the restore? If so, did you override your hosts file to use Saurik’s server?

    74.208.105.171 gs.apple.com
    74.208.10.249 gs.apple.com

    If you did that and had the same error message, then I had a similar problem, with an iPhone 4. I was told that to fix the problem, use tinyumbrella instead of Saurik’s server. Give that a try and let me know if that works. I had to use another method to restore my iPhone. If this method doesn’t work, I will tell you what it is – let’s just say it’s not pretty.

    Hopefully this will help fix your problem. Please post your results :)

    Cheers,
    Jay

  61. TAZ Says:

    After jailbreak with GP or PwnAge…the AirPrint function is not working on IOS 4.2.1 ? is there any fix for this?

  62. TAZ Says:

    I think I found what causes it….when I deactivate Backgrounder, the AirPrint is working….so i think the Backgrounder should be modified in order to make AirPrint working….since it automatically disables multitasking….

  63. WP Says:

    Fuck you

  64. iBlackdude Says:

    Hi. I have a 3GS and I was stucked on 5.15.04 with 4.1 Using windows 7.
    I finally unlocked my baby yesterday with Redsn0w/Ultrasn0w/ipad baseband ect…. The phone worked great for 1 day, and I started to put all my cydia apps back. After installing iQuickRealSMS (who wasn’t recognizing  the purchase I made 1 year ago), the phone freezed and stucked on reboot/apple logo for 1 hour. 
    I tried to restore with custom 4.1 with iTunes, but it’s failing all the time. 
    Questions: 
    - Am I supposed to restore again before redo the redsn0w jailbreak/unlock ? If yes am I supposed to use the custom 4.1 ? Or should I download a custom 4.2 ? 
    - Since I succeed yesterday and all was working great before that stupid accident, am I already on 6.15 baseband ? (maybe that’s why iTunes refuse to restore my custom 4.1 ?)
    - Or am I supposed to just re-jailbreak straight with Redsn0w/Ultrasn0w without restoring with iTunes ?
    Sorry for the long post. But I’m trying to be max specific. 
    Thx for the help….
    My iPhone is CRUCIAL for my Job. Please help….
    Also how to donate $$ ??  
    Hi. I have a 3GS and I was stucked on 5.15.04 with 4.1 Using windows 7.
    I finally unlocked my baby yesterday with Redsn0w/Ultrasn0w/ipad baseband ect…. The phone worked great for 1 day, and I started to put all my cydia apps back. After installing iQuickRealSMS (who wasn’t recognizing  the purchase I made 1 year ago), the phone freezed and stucked on reboot/apple logo for 1 hour. 
    I tried to restore with custom 4.1 with iTunes, but it’s failing all the time. 
    Questions: 
    - Am I supposed to restore again before redo the redsn0w jailbreak/unlock ? If yes am I supposed to use the custom 4.1 ? Or should I download a custom 4.2 ? 
    - Since I succeed yesterday and all was working great before that stupid accident, am I already on 6.15 baseband ? (maybe that’s why iTunes refuse to restore my custom 4.1 ?)
    - Or am I supposed to just re-jailbreak straight with Redsn0w/Ultrasn0w without restoring with iTunes ?
    Sorry for the long post. But I’m trying to be max specific. 
    Thx for the help….
    My iPhone is CRUCIAL for my Job. Please help….
    Also how to donate $$ ??  

  65. chad Says:

    Im trying to restore my phone from the new greenpoison JB. I wemt to settings / Genreal / Reset / Erase All content and Settings, Now all I have is the green poison/Apple Skull and nothing else. Can any one tell how to fix this or did I brick my phone

  66. lilsteal Says:

    i try jail breakin n i do all the steps riye n it wont jail breakk

  67. Arjun Says:

    I got my iPod jailbroken by Greenpois0n. Now whenever I add a repository, my Cydia shuts down. Please help.

  68. Kozzy Says:

    All you have to do is add a source, i added the ig33k source and all of the sudden all the sources came back. Hope that helps.

  69. Anonymous Says:

    Still waiting for a response.
    I have 3GS, week 42 from 2009, right now i have 3.1.3 jb with spirit. I was tethered before spirit.
    There are lost of apps that require 4.0 or higher that i want to have.

    my firmware is 5.12, with apparently newer bootrom.

    Is this JB for me to be untethered with 4.2.1?
    Is a jb/ unlock being worked on that will free my newer bootrom 3GS with unlock and JB?

    Please a clear answer. i looked at the chart, and to me it looks like the 3.1.3 is the best untethered jb for my 3gs, which sucks :(

  70. adam Says:

    will this affect my carrier? im with att and using 4.2.1.
    and baseband 5.15.04
    please let me know if it affects my carrier thank you!

  71. adam Says:

    OMG IT WORKED ON MY IPHONE 3GS AND IT SHOULD BE WORKING FOR ANY BOOTROM ON THE 3GS JUST LIKE IT SAYS ON THE READ ME FILE OMG I LOVE YOU GOD FOR HELPING ME AND HELPING THIS PEOPLE DO A GREAT JOB PLEASE GIVE THEM MORE SKILLS AND OPEN THEIR MINDS TO HELP THEM UNTHETHER THEIR DEVICES…

    THANK YOU GREENPOISON DEVELOPER! :D

    LOVE SENT FROM TEXAS!
    BYE BYE

  72. adam Says:

    OMG IT WORKED ON MY IPHONE 3GS AND IT SHOULD BE WORKING FOR ANY BOOTROM ON THE 3GS JUST LIKE IT SAYS ON THE READ ME FILE OMG I LOVE YOU GOD FOR HELPING ME AND HELPING THIS PEOPLE DO A GREAT JOB PLEASE GIVE THEM MORE SKILLS AND OPEN THEIR MINDS TO HELP THEM UNTHETHER THEIR DEVICES…

    THANK YOU GREENPOISON DEVELOPER! :D

    LOVE SENT FROM TEXAS!
    BYE BYE

  73. adam Says:

    YES IT DOES WORK I TRIED IT I HAD TO ALWAYS USE REDSNOW ALL THE TIME BUT NOT ANYMORE THANKS TO THIS DEVELOPERS THEY HAVE ESSENTIAL KNOWLEDGE THEY HELPED ALOT THANK YOU!

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