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How to Jailbreak iOS 4

Posted on June 21, 2010 by David

The revolutionary new iPhone/iPod Touch operating system, iOS 4, has been successfully jailbroken using Redsn0w. Here’s how:

1. Download Redsn0w for Mac OS X or for Windows

2. Connect your device to your computer and shut it off (slide to shut down)

3. Download the corresponding iOS 4 firmware for your iDevice from the “Downloads” section of TechGeec.com

4. Open Redsn0w and browse for the firmware that you downloaded. Select “Next”

5. Select which features you’d like to be installed with the jailbreak (certain devices cannot have multitasking, homescreen wallpaper, or battery percentage so enabling those features gives that device the features)

6. Click “Next” twice and prepare to put your iDevice into DFU Mode

7. On the screen that shows you what to do to put your device in Recovery Mode:
Hold power button for 3 seconds
While still holding the power button, hold the home button for 10 seconds
While still holding the home button, release the power button and continue holding the home button for 30 seconds

8. Congratulations! Once your device reboots you should have Cydia on your home screen.

Feel free to leave a comment below stating what your favorite feature of iOS 4 is, if you enjoy jailbreaking, if you’ve had any problems, or any other sort of feedback, and please, share this post and TechGeec.com with your friends.

This entry was posted in Uncategorized and tagged 1g, 2g, 3g, 3gs, 4.0, beta, cydia, dev team, easy, fast, features, firmware, hack, how to, iOS 4, iPhone, ipod touch, ipt2ggeec, jailbreak, mac, multitask, operating system, os, osx, pc, redsn0w, techgeec, tutorial, verbose boot, windows. Bookmark the permalink

16 Responses to How to Jailbreak iOS 4

  1. Bryan says:
    June 22, 2010 at 7:06 AM

    I finally figured out what was wrong, keep up the great work i believe i talk for everybody when i say thank you for what you are doing.

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  2. @DaBlauw says:
    June 22, 2010 at 10:05 AM

    I have the iPhone 3GS, and I got to download the iPhone 3GS firmware (4.0/8A293) then I go to use it and get a message saying unable to recolonize specified IPSW? Can someone help me out :(

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    • TechGeec says:
      June 22, 2010 at 3:42 PM

      The reason why you're getting that, is because FOR NOW, this jailbreak is ONLY for the iPhone 3G and iPod touch 2G. Redsn0w will be updated soon, however, to accomodate for the other iDevices.

      Log in to Reply
      • @DaBlauw says:
        June 22, 2010 at 7:55 PM

        oh ok hope it comes out soon my phone feels weird without my cydia lol Thanks for responding…

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  3. kevin says:
    June 22, 2010 at 7:46 PM

    welll their is a promblem w this jailbreak my model is a MC :( model its not support will it be fixed? sometime sooner thank you

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    • TechGeec says:
      June 22, 2010 at 7:52 PM

      You can now jailbreak the MC model using PwnageTool. Read this: http://blog.iphone-dev.org/post/726179754/foursom…

      Log in to Reply
    • kevin says:
      June 22, 2010 at 8:27 PM

      i have the ipod 2g and its the new boot ram probaly … thanks for helping out tho i hope their a release soon

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  4. Asianpurple says:
    June 24, 2010 at 8:24 AM

    i don`t quite understand what is in there http://blog.iphone-dev.org/post/726179754/foursom… and i am using windows 7 and windows xp..

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    • TechGeec says:
      June 24, 2010 at 3:08 PM

      PwnageTool is for MAC ONLY and it will only jailbreak the iPhone 3GS and iPod touch 2G (non-MC models).

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  5. AznSomething says:
    July 5, 2010 at 5:34 PM

    Is there any other programs that can jailbreak a iPod Touch 3rd gen 4.0 MC Model?

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    • TechGeec says:
      July 6, 2010 at 6:26 AM

      As of now, no.

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  6. LZ7 says:
    July 7, 2010 at 5:29 AM

    im using windows vista… does redsnow jailbreak a 2g ipod touch MC model?

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  7. Vipul Chordia says:
    July 21, 2010 at 10:28 PM

    Hi !! I have 3GS firmware (4.0/8A293).
    Can i roll back OR downgrade to 3.1.3 or lower firmware ??
    How ??

    Log in to Reply
    • TechGeec says:
      July 22, 2010 at 4:48 AM

      You can downgrade ONLY if you've backed up your SHSH blobs. If you don't know what those are, you haven't done it and so you can't downgrade… you're stuck. If you have, you can download the firmware you want to downgrade to from the "Downloads" page here on TechGeec.com and then when you go into iTunes, put your iPhone into DFU/Recovery mode, and then on the summary page in iTunes where it tells you info about your device, hold the SHIFT key (PC) or the Option key (Mac) on the keyboard while clicking the "Restore" button in iTunes. A window will pop up and you'll need to select the firmware you downloaded from wherever you saved it to. After that, it'll restore to that firmware.

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  8. jon321 says:
    July 28, 2010 at 11:15 AM

    How safe is this? I'm new with jailbreaking and this would be my first time to do it if i push through… :D

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    • TechGeec says:
      July 28, 2010 at 2:52 PM

      Very Safe.

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