New teaser video shows downgrading from iOS 9.3.5 may be possible

Downgrading your iOS device to an older firmware is only possible if Apple is still signing the firmware you wish to downgrade to. Just a few weeks ago, Apple closed the signing window for iOS 9.3.2 and iOS 9.3.3 making it impossible to downgrade or upgrade to these firmwares manually via iTunes.

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.

iOS hacker @tihmstar claims to be working on a new tool that would allow users to downgrade a 64-bit device from iOS 9.3.5 to an older firmware. In a video uploaded to YouTube, he can be seen using his partially-working tool called Prometheus to downgrade an iPhone 5s from iOS 9.3.5 to iOS 9.3.2. Needless to say, the downgrade completes successfully with the iPhone 5s returning to iOS 9.3.2.

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.

If you own a device that is jailbroken, then we recommend you to stay on that firmware if you don’t wish to lose your jailbreak. Updating to iOS 9.3.5 means that you will lose your jailbreak entirely along with the ability to do so. There’s also no tool that will allow you to downgrade to iOS 9.3.3.

Are you excited about Prometheus? Let us know in the comments below.


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