Downgrade iOS 5.1 to iOS 5.0.1 for A4 Devices

in iPhone How-to & Tutorial by

If you are currently on iOS 5.1 and wanted to downgrade to iOS 5.0.1, then this tutorial is for you.

Downgrade iOS 5.1 to iOS 5.0.1

Downgrade iOS 5.1 to iOS 5.0.1. image credit: revoseek.com

How-to Downgrade iOS 5.1 to iOS 5.0.1 on iPhone/iPad/iPod Touch. The downgrade tutorial below is shown for A4 devices only, not for A5 devices.
So, you can only downgrade iOS 5.1 to iOS 5.0.1 iPhone 4 & iPhone 3GS, iPad 1, iPod Touch 4G & 3G.

Downgrade iOS 5.1 to iOS 5.0.1 on iPhone 4S and Downgrade iOS 5.1 to iOS 5.0.1 on iPad 2 is not possible at the moment.

Requirements to downgrade iOS 5.1 to iOS 5.0.1

  1. iFaith. Download iFaith.
  2. iOS IPSW file version 5.0.1. Check if iTunes already saved iOS 5.0.1 IPSW on computer, if you can’t find it then Download iOS 5.0.1 from download-ios.com.
  3. SHSH Blobs generated by either iFaith (get SHSH Blobs with iFaith) or TinyUmbrella
  4. TinyUmbrella. This is optional.
    You can downgrade with TinyUmbrella. Or, you can downgrade by modifiying hosts file.

Follow these steps to downgrade iOS 5.1 to iOS 5.0.1 using iFaith

  1. Download iFaith and extract iFaith from the compressed file.
  2. Run iFaith and you will see a welcome message, click OK.

    iFaith Custom Signed IPSW Welcome

  3. Click Build *signed* IPSW w/ Blobs

    iFaith Custom Signed IPSW Menu

  4. Click Browse for SHSH Blobs Cache

    iFaith Browse SHSH Blobs

  5. Find iFaith SHSH Blobs (*.ifaith) or TinyUmbrella SHSH Blobs (*.shsh) file, select the file then click Open.
  6. Click Browse for iOS 5.0.1 IPSW and locate the IPSW file you have downloaded/found from iTunes library. Select the file then click Open.
    iFaith Browse iOS 5.0.1 to downgrade

    iFaith Browse iOS 5.0.1 to downgrade

  7. Wait a few seconds while iFaith verifying the IPSW file
    Once your IPSW verified, you will see “Credit and Thanks” window, click Build IPSW button to continue.

    iFaith Build IPSW

  8. iFaith will be building custom signed IPSW for your device.

    iFaith Building IPSW

  9. Once finished, you will be notified that iFaith Done building IPSW… and you can find the generated custom IPSW on your Desktop. The signed IPSW file generated by iFaith should be named like this:
    000xxxxxxxxx_iFaith_iDeviceName-iOSVersion (xxxxx)_signed.ipsw.

    iFaith Done Building IPSW

  10. Click Proceed button to get your iDevice ready for restore.
  11. You will see on-screen intruction how-to enter PWNED DFU Mode. If you’re familiar with DFU mode, it should be easy. If it’s your first time, then follow the DFU on-screen instructions carefully.
  12. Once your iDevice is in PWNED DFU mode the screen of the device should be blank with no light at all on the screen.
  13. Open TinyUmbrella and click Start TSS Server (if you are using TinyUmbrella)
    OR
    Edit the hosts file and add 74.208.10.249 gs.apple.com in the new line of the hosts file. (if you are editing hosts file manually for downgrade)
  14. Now open iTunes and it will tell you that the device is detected in recovery mode and click OK.
    iTunes detected device in Recovery mode

    iTunes detected device in Recovery mode

  15. Hold on the SHIFT (button on keyboard) and click the Restore (button on iTunes) then a pop-up window appear to let you select IPSW firmware file. Select the custom IPSW which iFaith just created.

    Restore iFaith Custom IPSW iTunes

    Restore iFaith Custom IPSW on iTunes

  16. iTunes will start restoring the custom iOS firmware and you will need to wait until iTunes has finished restoring the iOS on your iPhone|iPad|iPodTouch.
  17. viola! You have successfully downgraded iOS 5.1 to iOS 5.0.1.

Watch video tutorial downgrading iOS 5.1 to iOS 5.0.1 for iPhone|iPad|iPodTouch

If you have problem while downgrading iPhone|iPodTouch|iPad iOS 5.1 to iOS 5.0.1, let us know on the comment section below

Febryan Paudi (940 Posts)

Febryan Paudi is Apple enthusiast. Falling in love with Apple-tech since 2008, loves Blogging since high-school. Google+


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