Prometheus iOS tool: Downgrade iOS 11 to iOS 10

Download Prometheus Downgrade tool for iPhone or iPad to downgrade iOS 11.2.1…

If you were looking iTunes alternative to downgrade iOS 11.2.1 to iOS 11.1.2 or recently released beta to downgrade iOS 11.2.1 at any older version then we’ve a name that can be consider as iTunes alternative but better than that is “Prometheus”.

Prometheus iOS software is developed specially to downgrade any firmware to any firmware you want without any need of iTunes or any other software. You just need couple of things which can be generated in advance to perform downgrade using Prometheus on your iOS platform.

Take an example, if you want to downgrade iOS 11.2.1¬†to iOS 11.1.2 you can easily perform this task using Prometheus downgrade too. Isn’t it useful? It’s completely unrelated and not depend whether Apple signs any particular firmware or not, you can still use this tool to downgrade to iOS 11.1.2 or any firmware for any reason you’ve using Prometheus iOS.

However, there are couple things which you should consider and keep them in your mind. Prometheus downgrade tool uses APTicket and SHSH Blobs. Plus, without these things, you can’t use this iOS tool anyway. So, if you’ve set your mind to downgrade iOS 11.2.1 or any further firmware to iOS 11.1.2 to jailbreak it, you can’t without the required things that we’ve mentioned above.

Prometheus is developed by a YouTube user, “tihmstar”. A video is uploaded on YouTube by him that proves that the developer can easily downgrade iOS 11.2.1 to iOS 11.1.2 without any need of iTunes. The developer is confident that he can downgrade iOS 11.2.1 to iOS 11.1.2 too and for any firmware very soon.

Prometheus has to be passed from many development stages and there is a lot of work to be done to make it compatible for any iOS firmware to restore older version. However, it’s really good sign and news for us that there is another tool to downgrade iOS without need of iTunes. Prometheus is useless without SHSH Blobs and APTicket. It means you must create SHSH Blobs along with APTicket for the firmware on which you wanna downgrade to.

Download Prometheus Downgrade!

Because Prometheus needs lot of developments, it’s not available for public now. It’s also not declared that it would be paid or free. At this stage, we can confirm that it’s working without the help of iTunes and it would be really beneficial for restoring the firmware specially that which has been stopped signing from Apple.

Furthermore, Prometheus iOS is the tool which supports only 64-bit devices. It means you can use this tool for iPhone 7, 6S, 5S and not on iPhone 5 or iPod Touch 5G and older models.


If you were thinking to use Prometheus to restore iOS 11.1.2, then I would say, you can’t use it right now as you don’t have SHSH blobs and APTicket. But, you can download this downgrade tool and generate above things for iOS 11.2.1 in advance so that if PanGu release jailbreak iOS 11.2.1 when Apple already released iOS 11.2.1 or so on, you can downgrade to IOS 11.1.2¬†easily from iOS 11.2.1.

You would be able to download Prometheus as soon as developer put the links to our blog. So, keep connected and subscribe to our blog and we’d notify you as soon as we’re able to give your download links.


Downgrade iOS 11.1: Apple opened their last card with iOS 11.1.2 beta. Now, they’d keep updating this beta until final public release. Till then you’d get a lot of buggy firmware updates on your iPhone. Suppose, you wanna get out of it and wanna downgrade iOS 11.1.2 anytime soon, you don’t need to wait for official signing window status. You can instantly downgrade iOS 11.1.2 anytime when you want using Prometheus iOS tool to restore your desire firmware.

Would you use Prometheus to downgrade?


  1. Cruz says:

    Another useless post.

  2. Adams says:

    Please help me, I’ve installed iOS 11.2.1 and now I’m facing some bug issues. WiFi not working, AirDrop is also the main issue. Please help me and guide to downgrade iOS 11.2.1. Any version would be okay lower than iOS 11.2.1. I’m not big fan of jailbreak so I won’t downgrade to iOS 11.1.2

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