The signing window for iOS 10.2.1 could close any moment now, what with the upcoming release of iOS 10.3, so this is your last chance to save your blobs for iOS 10.2.1, or to downgrade to it from the iOS 10.3 betas.

iOS 10.2.1 is not currently jailbroken, so at the moment its blobs are not of use, nor is being on that firmware a guarantee of a jailbreak. However, you never know what’ll happen, so act now! Don’t be left out in the cold when signing ends.

Downgrading to iOS 10.2.1 is only for testers of Apple’s beta software, currently running a higher firmware. Bugs are patched with every iOS release, and jailbreak tools do not generally support the current firmware anymore, so these users should consider a downgrade. As for saving .shsh2 blobs for 10.2.1, this is highly advisable while they are still available. These blobs should let you use Prometheus to move to iOS 10.2.1 later, if a newer jailbreak is released for it.

Saving .shsh2 blobs for iOS 10.2.1

Who should do this?

Everyone should do this, regardless of their plans. The blobs are easy to save, and you never know when or why you might need them. They will allow already jailbroken users to move to 10.2.1 later if a newer jailbreak is released. Save them now for iOS 10.2.1, and continue saving them in future for iOS 10.3 and above too. This guide shows you how to easily save blobs. 32-bit device owners whose devices support iOS 10 can also save normal .shsh blobs through a method of their choice.

Downgrading to iOS 10.2.1 from a higher firmware

Who should do this?

Everyone on a firmware higher than iOS 10.2.1 should immediately downgrade to iOS 10.2 to increase their chances of a jailbreak. In general, a lower firmware is always better if you want to be supported by a future jailbreak. This guide shows you how to downgrade.

Upgrading to iOS 10.2.1 from a lower firmware

Who should do this?

No-one. This is madness.

Don’t get caught out!

Remember, signing for iOS 10.2.1 is expected to close very soon. After this time, you will not be able to save blobs, nor will you be able to restore to iOS 10.2.1. If an iOS 10.2.1 jailbreak is released in a couple of months (unlikely, but you never know), you will be unable to downgrade to iOS 10.2.1 from iOS 10.3+ then, and unable to upgrade from <iOS 10.2 if you didn’t save blobs now.  So now is the time for everyone to do so, and for those who were testing the iOS 10.3 betas to make the return jump.

Remember, whilst this is not an exciting chore in the absence of any upcoming iOS 10.2.1 tool, it is good preparation for the future! Don’t complain later that you thought it wouldn’t matter. Good luck!

  • Gil

    Can I downgrade from ios 10.3 to 10.2.1 without loss my data?

    • Wilber Alexander Flores

      Nope just do a backup then restore once on 10.2.1

      • Gil

        but I cant use 10.3 backup on 10.2.1

    • Rodney Coleman

      You won’t be able to get your data back when you downgrade. Need to be on the same OS or higher.

    • Joaquim Barbosa

      You can try downloading the 10.2.1 IPSW, and then manually selecting it in iTunes by clicking the “Update” button whilst holding alt/win. This may preserve your data, though I can’t promise.

      • Gil

        nope, I got error 14 and now I’m stuck in recovery mode

      • Joaquim Barbosa

        Unlucky, I guess just do a normal restore now with the 10.2.1 IPSW…

    • Natalie

      Depends. Some say alt clicking update and selecting the older firmware would work, but I’ve never got it to work. In the future, it might be worth taking screenshots of your layouts, using a tool to extract messages and whatnot, then trying to manually restore the layout and backup’d files.

  • Blip dude

    Ehh, just gonna update the iPad to 10.3 instead.

  • Natalie

    Still saving my blobs but I’m not going to move away from 10.3. Don’t mean to be the one to bitch about free things but like, this entire iOS 10 jailbreak has been a mess. Hoping iOS 11 will offer a much more stable jailbreak as the jailbreak I have on my iPad reprings every few days. I’d, at this point prefer a solid OS over features.

    • Joaquim Barbosa

      Yes, I’ve seen you say so on a few posts, do you have an iPhone 7? I think what you say is more true for them, as they have a less stable tool, but in general I’m not sure I agree.

      For example on my iP6, I stayed on 9.3.3 happily and waited for the 10.2 release, then used Prometheus and moved straight to 10.2 with no gap in having a jailbreak, and the 10.2 jailbreak is solid as a rock for me. Using it with Cydia Extender and some hacks means there’s no re-signing either, so it’s now the best jailbreak I’ve had since the last untethered one.

      I’m sure your experience can have been very different, however. Thanks for reading!

      • Natalie

        Yup, iPhone 7, The blob saving issue caused a few of us to mess up the restore and got forced to update. I thought Luca would have released a more stable version quicker than he did and unfortunately missed my chances to downgrade. I’ve been jailbreaking since 1.1.4 and while this jailbreak isn’t truly more unstable, if anything does wrong, and it often does, like the solid grey dock glitch, you’re totally out of luck to fresh restore.
        While day-to-day use of my iPad’s jailbreak is solid, I just think it runs out of resources and crashes.
        Maybe this new AFS will offer a greater incentive to hack the OS over iOS 10. I’m expecting iOS 11 to be the last jailbreak released for multiple devices at once 🙁

  • Guilherme 

    Not downgrading, liking 10.3 betas so far. Battery is crap though…

    • Joaquim Barbosa

      Ok, 10.3 is a massive security update though, unlikely to be jail broken as easily as 10.2.1. Luca Todesco has specifically said as much.

      But if you like the betas, it’s totally up to you!

  • Diego

    I’m iPhone 7 10.2.
    Should I update to 10.2.1 and save blobs or stay here on 10.2?

    • Joaquim Barbosa

      Stay. Lower is always better. You don’t have to be on 10.2.1 to save blobs for it. Blobs can be saved for all currently signed versions regardless of what is on your device. Stay on 10.2, but save blobs for 10.2.1, 10.3, and all future versions. Cheers!

      • Diego

        I’m saving the blobs now

      • Mariano Martinez

        Im on 8.4 jailbreak. Should i update or only save blobs ? If some day a jailbreak appears fir 10.2.1 how would it be pissible for me from 8.4 jailbroken to go to 10.2.1?

      • Joaquim Barbosa

        Save blobs, don’t update to a firmware with no jailbreak. With blobs you should be able to upgrade later if a jailbreak is released. Thanks.

  • Been trying to figure out one of those supposed “method[s] of choice” for 32 bit devices for a week, and none of them seem to work.

    Tiny Umbrella was my app of choice but it for some reason doesn’t work upon install (on Mac) and hasn’t been updated since last year. Abandoned, it seems.

    Beehind apparently is crap, if I’m supposed to believe the mountains of people on Reddit talking about each of these options in isolation.

    Prometheus apparently doesn’t work for 32 bit devices and is always accompanied by a message saying “don’t even try to save blobs for your 32 bit device with this.”

    And TSSSaver is a python script? Really not sure what to do with that guy, but currently seems like the only option to try; however, I’m not yet fully comfortable doing this shit without a GUI.

    SO what exactly would you say our “method of choice” is? Maybe you could edit your article to include one more sentence after the line “32-bit device owners whose devices support iOS 10 can also save normal .shsh blobs through a method of their choice,” to help those of us who are so very conveniently getting entirely left behind here on 32 bit devices.


    Also, thanks for your responses and attempts at support for me on the recent Home Depot article, Joaquim Barbosa!

    • Joaquim Barbosa

      Hi Caleb, good point. I might do an article on it at some point. For now, I’ll just tell you that you can use 1Conan’s TSS Saver for 32-bit as well as 64-but, so that may be the simplest way.

      The additional information in the shsh2 files it saves can be removed easily to return them to shsh blobs if necessary for a specific tool, and the additional information could be of use in the future.

      Aside from that, normal shsh can be saved with iApeiron’s version of savethemblobs, which is available on GitHub.

      Good luck! Prometheus and an upcoming 32-bit tool will thank you for it.

      • Thanks for your reply!

        And oh crap. I totally forgot about the newer form of TSS Saver being the website. When I finally found that last week, I visited the site and saw that it was down for maintenance and forgot to check back this week. My bad! They really did make it insanely easy, didn’t they?

        Thanks again!