Loophole discovered that could allow A5 devices to downgrade from iOS 5.1

By , Mar 25, 2012

Folks with newer devices on iOS 5.1 will be happy to hear that iH8sn0w has uncovered a new loophole that could potentially allow users to downgrade their A5 gadgets to the more jailbreak-friendly iOS 5.0.1 in the near future.

As noted by Gadgetsteria, the Sn0wBreeze creator announced yesterday via his Twitter account that he has uncovered a “loophole” in Apple’s APticket system that allowed him to downgrade his iPad 2 from 5.1 to 5.0.1…

Here’s the tweet:

This is actually a pretty big deal, considering there isn’t currently a jailbreak available for A5 devices (untethered or otherwise) on iOS 5.1. Nor is there a method of downgrading the firmware on these devices at this time.

Chances are you’ll need saved SHSH blobs from iOS 5.0.1 for whatever hardware you’re looking to downgrade, but we won’t know anything for sure until we see an official release. And unfortunately, we don’t have any kind of ETA.

As always, we’ll let you know more as soon as we do. So stay tuned.

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  • Anonymous

    Can’t wait!

    • Anonymous


  • http://twitter.com/notoriousTEG tim

    hopefully it can’t be easily patched…

  • http://twitter.com/iDara09 Dara Beng

    I hate snow, I mean iH8sn0w thumb up. :)

  • http://youtube.com/valonw Valon Bytyqi

    Can’t wait!

  • http://twitter.com/asafmoraz Asaf Moraz

    Great news! Thanks cody 😉

  • Anonymous

    Yes! Untethered jailbreak for 5.1 (just downgrade, then jailbreak, then upgrade, saving all the jailbroken data and putting it back on the 5.1 system)!

  • http://www.facebook.com/people/Faisal-Vianzon-Ali/1277830973 Faisal Vianzon Ali

    got no SHSH blob save can i still downgrade to 5.0.1? ipad 2 ios 5.1

    • http://twitter.com/binarydivided Filip Langer

      1st of all, he didn’t release the software yet, he just told us about it.
      Secondly, you are NOT able downgrade without SHSH since iOS 4.

    • http://twitter.com/chancellorr Chance Monnette

      I hoping the same thing.

  • http://twitter.com/chancellorr Chance Monnette

    SHSH blobs are unique to each device too aren’t they? Like, I couldn’t use the blobs from my girlfriends 4S on 5.0.1 to restore my 4S right?

    • http://twitter.com/steelahlive Steelahlive

      Correct, you could NOT use someone else’s Blobs

  • http://www.facebook.com/profile.php?id=708023726 Aaron Michael de Silva

    Why focus on downgrading ones firmware when he can focus on finding an exploit? I have a feeling iOS 5.1.1 (or 5.2) will be out in a few months time before iPhone 5 release.

  • http://www.facebook.com/iGeek1218 Rodney Coleman

    Awesome… But I’ll miss my 4G icon :(

    • http://www.facebook.com/richardkonsky Richard Anthony Konsky

      but you will still have a 4G Conection

  • Anonymous

    I was originally waiting for a bootrom exploit for A5 devices to get the 4S, but this is close enough. As soon as the guide is released, I think im gonna try to get a 4S on iOS 5.0/5.0.1.lol

  • http://twitter.com/PakoBahena Pako

    I have always wondered, what does ETA stand for?

    • http://twitter.com/pokeh123 Shawn Davis

      Estimated time of arrival

  • Anonymous

    um if we ned SHSHs then this is lame cause most 4Ss are on 5.1 already due to apples auto update BS..lol

    • http://www.youtube.com/Tr1pTr0p Tr1pTr0p

      Well, then its their problem for updating, “lol” They have been warned so many times not to upgrade by so many websites. There is even a Cydia tweak called “No Update” that will prevent the update from showing up in the Settings app. But even if you don’t have the tweak installed, your device still won’t automatically update during the night (mine didn’t, I installed the tweak about a week ago). iTunes even gives you a warning whether to even download the update, a warning that you can effortlessly ignore forever by clicking the “don’t show again” button.

  • http://www.facebook.com/profile.php?id=1002024997 Axle Paz

    Is there a jailbreak untethered 5.1 of iPhone 4s??? I mean Absinthe

    • Shugo Asakura

      You aren’t a good reader are you? Look at the first paragraph after the tweet post.

  • http://twitter.com/Louai_n Louai

    Finally !

  • http://twitter.com/milad25 Milad Khahil

    I got the iPad 3 with the 5.1 …… How on earth i am gonna have the SHSH blob saved in the first place !?

  • http://www.facebook.com/profile.php?id=1289908211 Tarek Zayed Abuzeid

    $25 iTunes gift card for $20. Payment is through PayPal if anyone is interested.

    • Shugo Asakura

      Did your mother drop you on your head when you were young? How can we trust that the card is still good? If it is, why sell it for a $5 loss? I smell a troll

  • http://www.facebook.com/profile.php?id=100003172597133 Ecc Thanh

    Release hurry up. my iPad 2 got stuck 5.1 -.- cant install app crack and stuff

    • http://www.facebook.com/profile.php?id=1595420643 Simche Apple Konstantinovic

      Why did you upgrade? Godd job, now you have to wait a while…

  • Osorio11

    On a somewhat related subject: as there is no untether for 5.1 yet and I was forced to upgrde because my iphone 4 wouldn’t boot anymore and couldn’t be restored (at least I fon’t know how) via shift+retstore in iTunes the following question:
    Is it posssible to downgrade to 5.0.1? And if so ;how? I have my SHSH blobs both on Cydia as locally stored. Or is it better to wait for an untehter? I can wait if I knw it would eventally come,but don’t know if the jailbreak folks rather wait for the new iPhone before using an exploit or whatever itis that is neede for an unteher.
    Much obliged with any answers you people here have for me.

    • http://www.facebook.com/fmbar00 Fabio Rodrigues

      similar situation here, my iphone 4S is on 5.0.1 and I have saved the blobs, but now the phone is having some problems about keeping the signal, so I need to reinstall 5.0.1, how do I do that?

      Im afraid to try and ending up having to put it on 5.1 and lose some tweaks like mywi, wifi passwords, sbsettings, fusion, and my MGS ringtones and some other stuff I have :S

  • http://www.facebook.com/profile.php?id=100000397955608 Angelo Musci

    I hope the downgrade will be released soon.

  • Osorio11

    @Angelo: it is actually possible to downgrade at least your iPhone 4, as I did with a program called iFaith. It allows you, provided you got your SHSH blobs saved on your pc, to 5.0.1 by building a signed IPSW. You have to download i.g. from iClarified stock IOS 5.0.1 firmware, stitch your SHSH blobs to it and then shift/restore in iTunes. Wirked like a charm: I am back on 5.0.1, which I jailbroke untethered with Redsnow and put back my favourite tweaks. Good luck.

  • http://twitter.com/danielosuji1 daniel osuji

    this useless to people that have not saved their SHSH Blobs, Any idea when i jailbreak will be available ???