TUTORIAL - Downgrade your iPad2 or iPad3 using SHSH Blobs and redsn0w

Discussion in 'Jailbreaking & Hacking Tutorials & How-To Guides' started by f4780y, May 15, 2012.

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  1. f4780y

    f4780y
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    Welcome to the iPadForums tutorial on how to downgrade your iPad to a 5.x firmware using SHSH Blobs and redsn0w!

    ----------

    redsn0w has been slowly evolving to be far more than just a jailbreak tool, and the latest iteration delivers something the community has been eagerly anticipating for a while. iPad2 and iPad3 owners can now downgrade their devices to previous versions of 5.x firmware.
    The following downgrades are supported as things stand:

    iPad3
    • 5.1.1 to 5.1
    iPad2

    This tutorial will demonstrate a downgrade of an iPad3 from 5.1.1 to 5.1. You should substitute the appropriate versions depending on what you want to do.

    Preparation
    In order to downgrade your device you will need two (2) firmware files. A copy of the current version of IOS, which is 5.1.1, and a copy of the version of IOS you want to downgrade to. redsn0w actually has to update your device to 5.1.1 if it is not currently installed before it can downgrade, and it needs access to important files in the firmware to work its magic.
    You can download the files you need from our hand thread. Make sure you pick the right files for your specific device - http://www.ipadforums.net/ipad-hacking/24939-official-apple-ios-firmware-download-links-ipad.html
    Next, you need to download the latest version of redsn0w from the iPhone dev-team blog here - Dev-Team Blog
    You will need at least version 0.9.11 or newer.

    Let's Downgrade!
    1. Launch redsn0w on your computer and select the "Extras" option (Don't forget to run the executable as an "Administrator" if you are using a Windows PC)
    [​IMG]
    2. Choose the "Even more" option ;)
    [​IMG]
    3. Choose the "Restore" option
    [​IMG]
    4. Now we have to select the IPSW firmware file we want to restore TO. i.e the version of IOS you want to end up with. For the purposes of this tutorial, that is the iPad3 5.1 IPSW. Press the "IPSW" button…
    [​IMG]
    5. Navigate to where you downloaded the IPSW file which you prepared earlier in the tutorial and select it…
    [​IMG]
    6. redsn0w will tell you it requires an additional file to complete the process. This will be the 5.1.1 IPSW mentioned in the preparation section above.
    [​IMG]
    7. Navigate to this file and select it too…
    [​IMG]
    8. Once your iPad is detected by redsn0w, the magic begins! Press OK once you see the "Connect to iTunes" recovery mode graphic on your device.
    [​IMG]
    9. Next you need to provide your SHSH Blobs for the version of IOS you are downgrading to. Remember - no blobs, no downgrade!
    [​IMG]
    10. You have 2 choices. If you blobs are stored on Cydia, then choose the "Remote" option and redsn0w will retrieve them on your behalf.
    If you have your blobs saved locally using TinyUmbrella, as I do, select "Local" and select the correct SHSH file for your device and firmware…
    [​IMG]
    11. For devices with cellular radio, redsn0w will fetch the latest baseband for your device as basebands cannot be downgraded under any circumstances today so the latest baseband must be slipstreamed into your firmware downgrade.
    [​IMG]
    12. Now the magic really begins. Sit back and relax whilst your device is downgraded by first upgrading to a special hacked version of 5.1.1!
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    13. After a while your device will reboot and go back into recovery mode… Don't Panic! Now your target version of IOS is restored...
    [​IMG]
    14. That's it! If everything went to plan, after a while, your device will be downgraded to the version of IOS you requested. Presto!
    [​IMG]
    15. Congratulations! You just downgraded your A5 iPad device. Awesome work! I hope you enjoyed the tutorial :D

    Happy Downgrading Fellow Jailbreakers!
     
    #1 f4780y, May 15, 2012
    Last edited: Oct 14, 2012
  2. Mickey330

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    See?

    THIS is why I love this forum and this Hacking section! An excellent, yet quickly written, tutorial is now up for a brand new process! And, my Evernote links notebook is now updated...

    Job well done - and thanks, f4780y.

    Marilyn
     
    #2 Mickey330, May 15, 2012
  3. MicroLao

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    Excellent !!!

    I downgraded my 5.1 back to 5.0 after losing my jailbreak to an unofficial Spire app. After nearly a month and 1/2 of waiting eagerly for 5.1 jailbreak, I was delighted to see this option surface. Now I'm jailbroken again and all is well. I'm glad I saved my 5.0.1 SHSH blobs with TinyUmbrella a few months ago.
     
    #3 MicroLao, May 15, 2012
  4. TheRambler

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    Excellent as ever, this is what makes this the best iPad forum on the net!

    thank you f4780y
     
    #4 TheRambler, May 15, 2012
  5. icedzed

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    hi, i have an ipad 2, wifi+3g, fw 5.1.1, i have 4.3.3 and 4.3.5 shsh saved, i try this tutorial, but when i choose the firmware 4.3.3, redsnow don't ask me for 5.1.1, after i put ipad in dfu, i can only press "remote" if i do it, i get this error:

    [​IMG]

    what can i do?
     
    #5 icedzed, May 16, 2012
  6. icedzed

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    ok, after a lot of try now i can press "local" i download fw 5.1.1, 5.0.1 and 4.3.3, i open redsnow, i choose extra bla bla bla restore, ipsw, i choose 5.01, redsnow ask me to choose also 5.1.1, in this way i can click "local" button, after, i press again ipsw, this time i choose 4.3.3, i click local and i choose my shsh

    BUT! now i get error 37 in redsnow.. how i can solve it?
     
    #6 icedzed, May 16, 2012
  7. icedzed

    icedzed
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    i'm blocked at flashing nor, everytime i try, how can i solve?
     
    #7 icedzed, May 17, 2012
  8. f4780y

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    This sounds to me like you have software running on your PC which is stopping the process. Your previous posts about iTunes Error 9 indicate that too. You should disable all firewall, anti-virus, anti-malware software and ensure you are running the tools as an administrator.

    The problem is definitely with your local setup and not with the tools.
     
    #8 f4780y, May 17, 2012
  9. icedzed

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    i try with this pc, a new pc formatted without antivirus, a normal mac and a mac formatted, on pc still the same error, on mac the process for press "local" work but i get another error, i read on devteam blog and it seem i'm not the only one with the problem of "flashin nor".. i think i have to wait for new redsnow version.. "-.-
     
    #9 icedzed, May 17, 2012
  10. Redneck_Randy

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    When iOS 6 comes out and Apple stops signing the 5.1.1 iOS will this still work if you never update to iOS 6 ?

    Thanks
    Randy
     
    #10 Redneck_Randy, Jun 10, 2012
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