How to Downgrade iOS 9.1-10.2 to iOS 8.4.1 without SHSH Blobs

I have some good news for you all! You can now downgrade iOS 9-10 to iOS 8 firmware without SHSH Blobs. The downgrade is carried out by a method called “iOS Spoofing”. Let’s find out how it works.

What is iOS Spoofing?

iOS Spoofing is a method that fools Apple into believing you are running a different firmware than the one installed on your device.

This is achieved by editing the SystemVersion.plist file with iFile’s text editor. Apple uses SystemVersion.plist file to access your firmware version, build number, and build type.

ios firmware

We will trick Apple and downgrade our device to iOS 6 while it’s still on iOS 9 firmware using this method. This will subsequently allow you to upgrade your device via OTA update.

The best thing about this method is that Apple can never patch it unless it blocks Over-the-Air update feature altogether.

Before you decide to use this method, keep the following things in mind.

  • There’s no proper jailbreak tool for iOS 8.4.1 yet that offers a user-friendly GUI .
  • This method will not work if you deleted Cydia’s language files.
  • You DO NOT need SHSH blobs to use this method.
  • Edit the plist file carefully. If done incorrectly, it can soft-brick your device.
  • This method is incompatible with iPad Air 2, iPhone 6 and iPhone 6 Plus. DO NOT try iOS Spoofing if you own any of these devices.

Which Devices are Compatible with iOS Spoofing?

Here’s the complete list of devices compatible with iOS Spoofing method.


  • iPhone 5S
  • iPhone 5C
  • iPhone 5
  • iPhone 4S


  • iPad Air
  • iPad 4
  • iPad 3
  • iPad 2
  • iPad mini 2
  • iPad mini 1


  • iPod touch 5

Which Firmware are Compatible with iOS Spoofing?

  • iOS 9.1
  • iOS 9.2
  • iOS 9.2.1
  • iOS 9.3
  • iOS 9.3.1
  • iOS 9.3.2
  • iOS 9.3.3
  • iOS 9.3.4
  • iOS 10
  • iOS 10.1.1
  • iOS 10.2

If your firmware version and device are compatible, move onto the tutorial.


  • A jailbroken device running compatible firmware
  • iFile
  • Cydia Eraser (iOS 9) OR OSRestoreX (iOS 10)

How to Downgrade iOS 9-10 to iOS 8.4.1 without SHSH Blobs

Step 1 Jailbreak your iOS device with Home Depot or Yalu jailbreak. Follow the tutorials given below.

Step 2 Install iFile from Cydia.

Step 3 Open iFile and navigate to this location – /System/Library/CoreServices.

Step 4 Look for a file named “SystemVersion.plist”.

Step 5 Open this file with iFile’s inbuilt text editor.

Step 6 Replace ProductBuildVersion with 10A406 and ProductVersion with 6.0 and save the file. If you are on iPhone 5S, iPhone 5C, iPad Air, or iPad Mini 2, use these values respectively – 11B554a and 7.0.4.

Step 7 Reboot and re-jailbreak your device. If you don’t know how to do it, read this guide.

Step 8 Use Cydia Eraser (iOS 9) or OSRestoreX utility (iOS 10) to remove your jailbreak and data. Set up your device properly.

Step 9 Go to Settings > General > Software Update > Download and Install iOS 8.4.1.

Step 10 Wait for the update to finish.

That’s it! Enjoy iOS 8.4.1 firmware on your device. You can also follow the video tutorial to better understand the process.

How to Downgrade iOS 9/10 to iOS 8 by Spoofing OTA

Posted by Yalu Jailbreak on Monday, March 27, 2017

A new iOS 9.3.5 jailbreak is just around the corner, so stay tuned.

If you liked this tutorial, don’t forget to share it on Facebook and Twitter.

  • Joel Blower

    I’m getting stuck at step 7 and 8. It looks like changing the ProductVersion to 7.0.4 is making the re-jailbreak guide link in step 7 not work as the guide is meant for iOS10?

    • Hello, Joel. What’s your device/firmware?

      • Joel Blower

        Thanks for your quick reply and sorry for my late one! 5s running 10.2

        • Here’s what you need to do –

          7. Reboot your iPhone 5s and launch yalu. Let it do its thing.

          8. Use SemiRestore10 Lite followed by OSRestoreX and then proceed to step 9.

          If you get stuck, let me know. Good luck.

  • Stooler12

    Any way I can upgrade from 7.1.2 to anything on ios8 or ios9 and keep my jailbreak?

    • Hello, Stooler. Which device are you using? Have you saved your blobs?

  • robin994

    is there a way to downgrade ipad 2 stuck on firmware 9.3.5?

    • Hello, Robin. Yes, you can downgrade if you have blobs for your destination firmware.

      • robin994

        damn, i lost them , thanks for fast reply 🙂

        • You can still try this tool, though.

  • Luke Hammer

    Hi is it possible to spoof 7.0.4 on 7.1 on my iPhone5S?

    • Hello, Luke. It’s not possible in your case.