Jailbreak iOS 4.2 GM Using Redsn0w 0.9.6b2 On iPhone 4, 3GS, 3G, iPod Touch & iPad


by casey on November 2, 2010

Today, Apple has released iOS 4.2 Golden Master version to developers. Whenever a new version of the iOS is introduced, the very first thing that comes in our minds is its Jailbreak. Rite ??? Very Rite!!!!! Good news is that the latest Redsn0w 0.9.6 release has been confirmed to be able of Jailbreaking iOS 4.2 GM on iPhone 4, iPhone 3GS, iPhone 3G, iPod touch 4G / 3G / 2G and iPad.

The news has been really great for developers who have got their copies of iOS 4.2 Golden Master Version. As we know, the Golden Master version is the one that eventually reaches the customers, which means that the Redsn0w 0.9.6 Jailbreak will be applicable when the company officially releases iOS 4.2 for all users.

A post in a Forum

Today Apple released to developers the GM seed for 4.2. Tinkerers will find that yesterday’s redsn0w jailbreaks today’s 4.2 GM seed, simply by pointing redsn0w at the 4.1 IPSW (rather than the 4.2 one). Right now it mostly only makes sense for JB app developers to do that because many apps (including Cydia itself) need to be updated for 4.2. However, if all you want to do is enable afc2 (to use iFunBox or other file browsers), or to tweak settings like Battery % and Homescreen wallpapers, then go for it (if you have valid paid access to the GM seed). Be sure to uncheck the Cydia box, though! Ultrasn0w unlockers should stay very far away from this!!”

So, You want to Jailbreak your iOS 4.2 device???  Follow the steps.


  • Download both iOS 4.1 and iOS 4.2
  • Connect your iOS device into your computer through USB
  • Turn off iTunes program if it is running.

Before You proceed to next step: Update to iOS 4.2 firmware using the IPSW file downloaded from iTunes 10.1 Beta 2.


  • Run Redsn0w 0.9.6b2
  • Browse to iOS 4.1 original firmware file NOT the latest iOS 4.2.

RedSn0w 0.9.6b2 Jailbreak For iOS 4.2 -1


  • Select “Install Cydia”
  • Press Next button to start the process.

RedSn0w 0.9.6b2 Jailbreak For iOS 4.2 -2


  • Put the device in DFU mode when it asks.
  • Follow the simple do as directed process.

RedSn0w 0.9.6b2 Jailbreak For iOS 4.2 -3

Thats it, Enjoy your Jailbroken device. :) :) :)

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  • M.


    Just read over this twice, and there seems to be a crucial step missing.

    You’ve downloaded 4.1 and 4.2 right?

    Why is there no mention of using the 4.2 IPSW file? What are you doing with it?

    • Anonymous

      Update to iOS 4.2 firmware using the IPSW file downloaded from iTunes 10.1 Beta 2.

  • http://twitter.com/Pablo_Castrillo Pablo Castrillo

    It’s not working on my iPad. Im trying with iPhone 4 firmware 4.1 since there’s no 4.1 for ipad. Am I doing something wrong?

    • Anonymous

      Wot problem actually are u facing with it ???

  • George_k99

    I have tested this method on my iphone 4. working fine with me.

  • Timliongthoddjobman

    does cydia work

  • http://pulse.yahoo.com/_MPY6VZ5JC6BEJ6H5HACH5NZFSE James Youg

    cydia will not work for me, i have followed everything you said, it seems to install and i have a cydia icon but when i click it, it just flashes but nothing happens

  • kabuco111

    where can I download this firmware 4.1 for iPad ?

    • Anonymous

      The above method is for iOS 4.2 Golden Master version. Not for 4.1

    • Mark

      how do you point it at ipad 4.1 when there isn’t one?

  • Leo_navarro96

    But, if i’m jailbroking the iPad, what firmware i’m supossed to pick, 3.2.2?

  • iPhone 3G user

    Same here , what’s the problem?

  • Xtasy

    I have the same issue, Cydia icon is there (blank white … not picture) and when I click it, it flashes but does not open :(

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