SHSH

Possible downgrade to iOS 10.2 from iOS 10.2.1 for some users

Joaquim Barbosa / February 23, 2021

Are you are stuck on iOS 10.2.1 or higher, having missed the iOS 10.2 signing window and therefore the Yalu jailbreak? If so, you may be in luck today, provided you have the correct setup. Early reports have come in that some devices are creating nonce collisions on iOS 10.3 b1, providing an indirect route back to iOS 10.2 through Prometheus.

For this clever workaround to come off, you must have a device which produces collisions, namely the iPhone 5s or (possibly, though not confirmed on iOS 10.3 b1), an iPad Air. If you do, you may be able to downgrade from iOS 10.2.1 to iOS 10.2 and jailbreak, by first downloading and installing iOS 10.3 beta 1, and then downgrading to iOS 10.2 using futurerestore.

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How to verify your .shsh2 blobs with img4tool

Joaquim Barbosa / February 23, 2021

We recently reported how some of the .shsh2 blobs saved with previous versions of tihmstar’s TSSChecker were faulty. One problem affected all iPhone 7 and iPhone 7 Plus blobs, rendering them useless. This issue has now been fixed going forward, though past blobs are invalid.

The other problem was more complex and affected only certain models of certain devices. It is also fixed for blobs saved from now on, but given these occurrences, it is important to be able to check whether the blobs you saved in the past are in fact valid and fit for use with Prometheus.

In this article, we’ll go through how to use another tool from tihmstar’s Prometheus suite, img4tool, to verify that your .shsh2 files are good. This method will clarify whether you are affected by the second problem mentioned above, but will also work in general, when checking the validity of your blobs in future.

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TSSChecker now correctly supports iPhone 7 and iPhone 7 Plus

Joaquim Barbosa / February 23, 2021

It seems tihmstar has been busy putting right the flaws in his suite of tools; just one week after he revealed that a bug in his .shsh2 saving tool TSSChecker had led to all iPhone 7(+) blobs saved with it being invalid, a new update restores the ability to correctly save blobs on Apple's most recent flagship device.

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How to fix TinyUmbrella v9.3.4 crashing on launch

Joaquim Barbosa / April 8, 2017

Many jailbreakers will be familiar with the program TinyUmbrella, which has traditionally been one of the best ways to save SHSH blobs for their iOS devices onto their Macs for safekeeping. What SHSH blobs are, their function, and how to save them is outside the scope of this article, (I will put something together soon on this), but suffice to say that saving these blobs is of some importance to many jailbreakers and that TinyUmbrella has been the go-to application for doing so for a long while.

Whilst the application was updated as recently as August by its creator Semaphore, many Mac users (myself included) have noted that the new version, 9.3.4, gives an error on launch and cannot be used at all. This guide will walk you through the fix to get your umbrella back up again on Mac, so you can carry on wishfully saving those blobs.

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3 ways to prepare for iOS 8.4.1

Jeff Benjamin / April 18, 2018

With iOS 8.4.1 currently in beta, chances are it will be released sooner than later, and Apple will follow up that release with a closure of the iOS 8.4 signing window.

Although we've seen nothing official regarding the matter—Apple still has yet to post release notes about its 8.4.1 beta—rumors are swirling that this update does indeed fix the exploits used in the TaiG iOS 8.3 and iOS 8.4 jailbreak.

With this in mind, it's time to begin preparing mentally for what's to come. In this post, I'll show you how to be proactive and take the right measures to ensure a long jailbreak tenure on iOS 8.4.

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How to prepare for a possible iOS 8.3 downgrade

Jeff Benjamin / April 18, 2018

When Apple closes the firmware signing window for iOS 8.3, users wishing to downgrade (or upgrade) to iOS 8.3 won't be allowed to do so. Instead, you'll have to settle for whatever firmware Apple is signing, which is usually the latest and greatest out there.

When that happens, it's quite probable that it could spell the end of jailbreaking for a while—remember we just got out of a significant lull.

With this in mind, the ability to downgrade back to iOS 8.3 is very desirous for would-be jailbreakers. While there is no confirmed downgrade ability just yet, there are some things that you can do to ensure that you have the best chance to downgrade should that ability arrive.

This is accomplished by saving your iOS 8.3 SHSH blobs.

To save your SHSH blobs and prepare for a possible iOS 8.3 downgrade, you'll need to use TinyUmbrella to do so. I'll show you how in this post and video.

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New TinyUmbrella 8.2.0.41 beta released

Jeff Benjamin / March 22, 2015

TinyUmbrella, the tool that allows users to save SHSH blobs to be used for potential downgrades, has received another update. As we reported a few weeks ago, TinyUmbrella has made a significant comeback, and its developer, semaphore, is hopeful that downgrades to iOS firmware will be a real thing in the not so distant future.

With this in mind, semaphore is continuing to improve TinyUmbrella, and this latest beta version contains numerous fixes and iterative enhancements. If you still haven't saved your SHSH blobs, I advise you to stop what you're doing, download TinyUmbrella, and do so today.

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A new TinyUmbrella beta is released with iOS downgrades in view

Jeff Benjamin / April 30, 2018

As promised, Semaphore has released a rewrite of his popular TinyUmbrella tool for OS X and Windows. The tool, which has been completely rewritten from the ground up, is currently in beta and requires Java.

Semaphore has alluded to the fact that the new TinyUmbrella may have far-reaching consequences related to downgrading both 32-bit and 64-bit devices. Back in the original TinyUmbrella's heyday, it was used as a tool to help downgrade to prior versions of iOS.

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TinyUmbrella updated with support for iOS 6.1.3

Cody Lee / April 23, 2013

Good news jailbreakers. Notcom has finally updated his popular SHSH blob-saver to support iOS 6.1.3. Apple seeded the update to users more than a month ago with a fix for the latest Lock screen security bug and Maps improvements.

Unfortunately, 6.1.3 also killed several of the exploits that the evad3rs were using in evasi0n, effectively killing the iOS 6 jailbreak. But for those of you who upgraded to it, whether by accident or choice, here's TinyUmbrella version 6.13.00...

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