Prometheus Download: Downgrade iOS 11 to iOS 10 Possible?

Now, you can downgrade iOS 11, iOS 10.3.3 and any firmware to lower version…

This was not first time when Apple patched iOS exploits and prevented iOS jailbreak as well as iOS 10.3 jailbreak too. Unfortunately, Apple smartly stopped signing iOS 12.1.1 firmware and thus you cant downgrade to iOS 12.1.1 at any way.

If you wanna downgrade to, you need to develop your own tool that can downgrade iOS to iOS 12.1.1 or any firmware on which you’re currently. PPHelper tool failed to released iOS jailbreak and it seems like iOS 10.3 would also be unjailbreak firmware. In this situation if you’ve chance to downgrade to iOS 12.1.1, you’d be more than happy as I.

Update: Luca Todesco is also planning to release iOS 12.1.1 jailbreak for iPhone 7, which may be available for download soon. Check the status for download from our blog.

In some distance in the past, TinyUmbrella was capable to save SHSH blobs which are very important to downgrade any firmware to the firmware which is available in form of SHSH blobs. Currently, TinyUmbrella not working on iOS 12.1.1 or iOS and thus the developers of TinyUmbrella working on a fix to make TinyUmbrella iOS version so that you can save SHSH blobs to downgrade your iPhone or iPad to the firmware that you love most. Very soon, we’d have the tool that would help to downgrade iOS to iOS 12.1.1 or any firmware you want.

The good news is, the developer Tihmstar has uploaded a video that demonstrates downgrade iOS to iOS 12.1.1 successfully. For this, he used iPhone 5s and he can easily downgrade iOS to iOS 12.1.1 and if he released it publicly, we can downgrade iOS to iOS 12.1.1 in short future. This tool is known as Prometheus.

As, Prometheus is still in the beta stage, it would be really early to say that it would work on iOS, iOS and other future version to downgrade for archiving jailbreak iOS 12.1.1. Prometheus uses APTickets, you can say that it’s just like SHSH blobs which can be used and perform Prometheus to downgrade iOS to iOS 12.1.1 or any firmware you want.

At this stage, the developers using the Prometheus iOS tool for their own use for testing it and they don’t mentioned when they would release this downgrade tool. We know that if you want to downgrade using Prometheus, you need to save APTickets just like SHSH blobs which is must have things.

Download Prometheus Downgrade tool!

I’d say it’s not completely clear about public release. As, this tool still in beta stage, it would need some times to be compatible for public use. The developers are creating the process of downgrade more smarter and easier and it would need some times.

Meanwhile, we wanna mention one thing that Prometheus only supports 64-bit devices currently. The users who wanna use this tool, have to save APTickets every time they update the firmware.

Bottom Line

You can do one thing if you don’t wanna lose iOS 12.1.1 jailbreak. Don’t upgrade to iOS or any version if you’re on iOS 12.1.1 and stay tuned on it.

Once we get the final public version of Prometheus downgrade tool download link, we’d post a new article on download links or update this article with the links.

Till then save your current jailbreak. Check iOS jailbreak status here…


  1. i saved shsh blobs for ios 10.2.1 and upgraded to 12.2.5
    is it possible to downgrade back to 10.2.1?

  2. With the uncertainty of any iOS 11 JB, I chose to stay with 10.1.1, jailbroken with Yalu. I did save SHSH blobs for 12.1.1. Is it possible to use Prometheus to UPgrade from 10.1.1 to 12.1.1?

  3. any one help me to downgrade ios or jailbreak?😢

  4. I am on 9.3.3 jailbroken. can I save the shsh2 for 12.1.1 rn?

    1. I’m also lucky that I’m still on iOS 9.3.3 and I don’t wanna go to iOS 10.3. But suppose I would be on iOS 10.3, I would downgrade iOS 10.3 immediately to iOS 12.1.1

      1. i have the sme happening with my ipad 2 on 9.0 also same error wont load any content in cydia cause of this dumb error

    2. I am also on 9.3.3 but havent been able to use cydia for 6 months wont load up has numerous errors one cant locate file/var/ dont remember the complete error but cydia is useless read a thread how to fix it but way to complex

  5. i have iphone 6s plus 10.0.1. Can i upgrade to 12.1.1?

  6. i have still iOS 9.3.2 in my iPhone 6s but my jailbreak broken. then what can i do to save my shah blobs or my aptickets. or install the same iOS version on my phone to nullify my iPhone and install jailbreak again. pls help

    1. You may download iFaith,Redsnow or Tinyumbrella.

      1. Does iFaith still work on iOS 10.3 to downgrade???

  7. This is really nice tool, but I wanted to do something different using Prometheus. Can you help me downgrade iOS 12.1.1 to iOS 9.3.3 or if it’s easy then I can go back to iOS 12.1.1 too.

    You can reply me of you can email too. You’ve email address of mine. Don’t forget to reply.

    1. isn’t possible!

  8. can I downgrade iOS 10.0 .2 to iOS 9.3.3?
    I’m right now on iOS 12.1.1 and would update to iOS 12.1.1 to downgrade 12.1.1 using Prometheus

  9. How to use Prometheus iOS tool to downgrade 12.1.1???

  10. use beehind ios for saving shsh,save all shsh

    1. How can we save iOS 12.1.1 shsh blobs when I missed it and now I’m on iOS 12.1.1, How can I downgrade 12.1.1 without having SHSH. Please give me download links for SHSH blobs.

      1. You are out of luck mate! You cannot retrieve the SHSH blobs once Apple stops signing that particular firmware or if u updated your device to a newer iOS version.

      2. I don’t know if the older technique of using an SHSH from different iPhone same model works.But even if you could there will be that nasty sleep bug.

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