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

This is a discussion on TUTORIAL - Downgrade your iPad2 or iPad3 using SHSH Blobs and redsn0w within the Jailbreaking & Hacking Tutorials & How-To Guides forums, part of the iPad Hacking category; Welcome to the iPadForums tutorial on how to downgrade your iPad to a 5.x firmware using SHSH Blobs and redsn0w! NOTE - With the release ...

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

  1. #1
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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!

    NOTE - With the release of IOS6, this tutorial will no longer work! PLEASE DO NOT USE IT.
    The new version of redsn0w has been released which supports restoration of iPad2 and iPad3 firmwares. Our NEW tutorial for it is here - TUTORIAL - Re-restore IOS 5.x on iPad2 and iPad3 using redsn0w and SHSH Blobs
    ----------

    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.
    NOTE - You must have saved SHSH Blobs for your device and the version of IOS you want to downgrade to. Without these, you cannot downgrade under any circumstances. No blobs = no downgrade. See our FAQ for more information about blobs - http://www.ipadforums.net/ipad-hacki...ed-2012-a.html
    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 - Official Apple IOS Firmware Download Links for iPad
    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)

    2. Choose the "Even more" option

    3. Choose the "Restore" option

    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…

    5. Navigate to where you downloaded the IPSW file which you prepared earlier in the tutorial and select it…

    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.

    7. Navigate to this file and select it too…

    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.

    9. Next you need to provide your SHSH Blobs for the version of IOS you are downgrading to. Remember - no blobs, no downgrade!

    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…

    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.

    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!





    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...

    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!

    15. Congratulations! You just downgraded your A5 iPad device. Awesome work! I hope you enjoyed the tutorial

    NOTE - The vulnerabilities used by redsn0w to perform the downgrade can be easily patched by Apple. In many ways it is amazing that they have not patched them already since it was the same vulnerability used by the Absinthe jailbreak. Do not rely on being able to downgrade from a NEWER version of IOS than those stated above. If you want to go back to a particular version of IOS, do so today before it is too late! You have been warned
    Happy Downgrading Fellow Jailbreakers!
    Last edited by f4780y; 10-14-2012 at 08:57 AM. Reason: tutorial closed
    15" MacBookPro with Retina Display 16GB 3.4GHz i7 256GB | iPad4 WiFi 32GB 6.1.2 (evasi0n) | iPad3 4G 64GB 6.1.2 (evasi0n) | iPad2 3G 64GB 5.1.1 (redsn0w) | iPad1 3G 64GB 4.3.3 (jbme) |
    iPhone5 32GB 6.1.2 (evasi0n) | iPhone4S 64GB 5.1.1 (absinthe) | iPhone4 32GB 7.0b2 (stock) | iPhone3G 16GB 3.1.3 (jbme) | iPod Classic 6G 160GB (stock) | AppleTV 2G 5.0.2 (seas0npass)


    Please review the hacking section rules and our main rules before posting!

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  3. #2
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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
    Space Gray 32GB WiFi-only iPad Air & Black 32GB iPhone 5 (both jailbroken on iOS 7.0.6 w/evasi0n7)
    * * * PLEASE READ * * * Forum Rules * * * Hacking Section Rules * * * PLEASE READ * * *

  4. #3
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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.

  5. #4
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    Excellent as ever, this is what makes this the best iPad forum on the net!

    thank you f4780y
    64GB wifi ipad2 iOS 7.0.6 (Jailbroken using Evasi0n) : 120GB iPod Classic (Now in Apple heaven as I left it in my trouser pocket in the washing machine BOO HOO!!) : AppleTV 2G iOS 5.0.2 (Jailbroken using seas0npass): iPhone 4S 64GB iOS 7.0.6 (Stock, so I can stream Sky Go) : iMac 27 (Living The Apple Dream!!)

  6. #5
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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:



    what can i do?

  7. #6
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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?

  8. #7
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    i'm blocked at flashing nor, everytime i try, how can i solve?

  9. #8
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    Quote Originally Posted by icedzed
    i'm blocked at flashing nor, everytime i try, how can i solve?
    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.
    15" MacBookPro with Retina Display 16GB 3.4GHz i7 256GB | iPad4 WiFi 32GB 6.1.2 (evasi0n) | iPad3 4G 64GB 6.1.2 (evasi0n) | iPad2 3G 64GB 5.1.1 (redsn0w) | iPad1 3G 64GB 4.3.3 (jbme) |
    iPhone5 32GB 6.1.2 (evasi0n) | iPhone4S 64GB 5.1.1 (absinthe) | iPhone4 32GB 7.0b2 (stock) | iPhone3G 16GB 3.1.3 (jbme) | iPod Classic 6G 160GB (stock) | AppleTV 2G 5.0.2 (seas0npass)


    Please review the hacking section rules and our main rules before posting!

  10. #9
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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.. "-.-

  11. #10
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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


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