Prometheus Downgrade Tool iOS 9.3.5 to iOS 9.3.2

A new teaser video has surfaced on YouTube that appears to show an iPhone 5s being successfully downgraded from iOS 9.3.5 to iOS 9.3.2.

The video demonstrates the use of a third-party tool that the creator is calling Prometheus, but it also brings up a lot of questions that still have yet to be answered.

If this is legitimate, this would be the first major breakthrough downgrade process for 64-bit iOS devices, which is a huge feat in itself, but the ability to downgrade would breathe some much-needed new life into the jailbreak community as a whole.

Little is currently known about the inner workings of the Prometheus, but what we do know so far is it seems to utilize Apple’s APTicket and SHSH blob system. Moreover, it’s only compatible with 64-bit devices, and not 32-bit devices.

You can watch the magic in the video embedded below:

In the video description, the creator says “other conditions” must also be met, but no additional details have so far been released as of this writing, so it’s unknown what else other than saved APTicket and SHSH blob information might be required.

“It is currently unknown what conditions have to be met to be eligible for downgrade without jailbreak,” hacker tihmstar, the creator of the tool, explains.

One thing that will probably grind a lot of people’s gears is the simple fact that because it relies on saved APTickets and SHSH blobs, most people probably wouldn’t even be able to use Prometheus.

Why do we say that? Most people went about their lives, ignoring the recommendation to use third-party tools like TinyUmbrella, because it has been essentially useless for the last few years after downgrading iOS devices was no longer possible.

Despite how many questions there currently are about how this process works, and whether or not Apple would be able to patch it in a jiffy, there simply isn’t enough information right now. You’ll just have to judge for yourself.

Do you wish you could downgrade your iOS device(s) firmware? Share below!

  • Reminds me of the TinyUmbrella day where I would save all my SSH blobs on my iPod 4G

    • Iskren Donev

      Reminds me also of the days when Cydia would save your SHSH blobs and you had them listed on multiple rows at the bottom of Cydia’s home screen.

      • leart

        at the top of cydia homescreeen

      • Iskren Donev

        Ugh it’s been *too* long.
        *corrects mistake*

      • Oh man I remember those days

    • mrgerbik

      Oh to be young and think 6 years ago constitutes the phrase ‘back in those days’

      • spockers™

        IKR, that was last month to me. 😛

  • leart

    very nice, you can use Prometheus and Pegasus and you’ll be fine

  • Savan Bhavani

    Yes Please
    And Release This Tool As Soon As..

  • Reminds me of the old good days, when we could easily downgrade!

    • leart

      I purchased last month a iphone 4, with shsh blobs.. I can go up and down through ios versions, in minutes 😀

      • Ken626

        i still have my iphone 4(7.1.2) as i only use it to stream stuff to my apple tv 3,i wish IntelliScreenX would be updated for my iphone 6 plus(9.0.2),it was the main reason i jailbroke,dam i miss IntelliScreenX,best purchaesd tweak i own.

      • leart

        basically all the apps from the lockscreen, very nice .. i remember that used to drain battery like crazy 🙂 . but I agree it was amazing and very good liking

      • Thi Goi

        How can you stream your iphone 4?? some tweak? mirroring?

      • Ken626

        just ordinary AirPlay from iphone 4(7.1.2) to Apple tv 3.i like to keep it simple,hehe

      • Ken626

        but sometimes i do use my iPhone 6 Plus and iPad 3.

  • Sigit

    I love the Sticker in laptop front camera