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Greenpois0n Windows Download Jailbreak for iOS 4.2.1 Now Available

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Just a quick heads up–Greenpois0n for Windows is now available! Thanks, Chronic Dev Team! Click here to download RC5.4.

Also, there was an update to the Mac version. Click here to download RC5.4. The site is getting hammered right now so keep trying.

Thanks to Michael for the email!

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  • SgtAdam

    Are we able to run this over our currently tethered 4.2.1 redsn0w jailbreak like the mac users can do?

  • Vic

    does the jailbreak work for iPhone 3G?

  • You should be able to as these Mac/Windows builds are only different to run on your OS. Methods of jailbreaking remain the same on the iPhone.

  • You should be able to as these Mac/Windows builds are only different to run on your OS. Methods of jailbreaking remain the same on the iPhone.

  • You should be able to as these Mac/Windows builds are only different to run on your OS. Methods of jailbreaking remain the same on the iPhone.

  • Asdf

    If you have a iPhone 3g, just redsn0w, not greenpois0n (you could have done this right from the time 4.2.1 was released unlike later versions of the iphone).

  • Slim_902

    Worked for me. Ip4 iOS 4.2.1 tethered via RS. Now untethered via GP!!!

  • Slim_902

    Worked for me. Ip4 iOS 4.2.1 tethered via RS. Now untethered via GP!!!

  • Ex

    Yes

  • Vic

    will it be tethered or untethered if i use redsnow for 3G?

  • Untethered.

  • harr

    is the new version for mac any better and more stable than the previous versions? The jailbreak did not work when I first tried and I am not sure I want to risk it again.

  • It should fix some problems/bugs from the first release. Best to try again.

  • lello91

    unlock available or not yet !!?

  • Ex

    Just try it.
    You can’t do anything bad to the device

  • harr

    When I had tried the first time I had the 4 errors come up, I then tried to restore and it wouldn’t restore so that’s why I’m a little cautious.

  • Vic

    thanks!

  • works great

  • Anon Sav

    I’m not on contract I bought the phone outright, would jailbreaking affect me?

  • No.

  • SgtAdam

    Nice, now I don’t have to panic when my phone is running close to 10% or lower.

  • Tethered jailbreaks are never fun, as my iPad was tethered 4.2.1 via
    redsn0w. I just ran Greenpois0n over the jailbreak, and now it’s untethered.
    🙂

  • Anonymous

    do u guys think we should wait until RC5-b3 is released on windows before jailbreaking? or just go ahead with the b2?

  • Stevie-Coops

    Works for me, iphone 4

  • So far, based on the comments this version is good to go. I’m sure
    @p0sixninja fixed some bugs after hearing about them from the initial OS X
    release.

  • Nice. I just used the Mac version, worked like a charm.

  • Anonymous

    -1

  • Pingback: How to Jailbreak iOS 4.2.1 with Greenpois0n on Windows | iPhone in Canada Blog - Canada's #1 iPhone Resource()

  • AOMalley05

    Will this activate the phone?

  • SP

    hey guys i jail broke my phone with limera but now need to upgrade my firmware and such..

    will it matter if i use green poison now to jailbreak?

    what will happen to all the stuff i have downloaded from my jailbreak if i use green poison instead of limera???

    help…. : (

  • Download AptBackup in Cydia. Update, jb with greenpois0n. done.

  • smiley

    My home button is broken so I can’t put it in DFU mode, only restore mode..how can I make it work using restore mode? 

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