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  • Redsn0w 0.9.11b1 Released


    As we reported just earlier this week, MuscleNerd was working on an update for redsn0w that would allow iPhone 4S, iPad 2, and The new iPad (A5/A5X) users to downgrade their firmware if they had their SHSH blobs saved. iPhone 4S and iPad 2 users have the ability to downgrade as low as iOS 5.0.1 and The new iPad users have the ability to downgrade as low as iOS 5.1. A4 users have been able to downgrade since the dawn of time due to a shiny bootrom exploit.

    Quote Originally Posted by Dev-Team
    Jailbreakers with devices that pre-date the iPad2 will always be able to downgrade (with SHSH blobs) to previous firmware versions due to geohot’s limera1n exploit, which allows us to bypass the restrictions that Apple places on restores. But until now, that ability has been limited to those older devices (if you have an older device and don’t know how to do that, check the popular tutorial sites or ask in the comments below).

    Starting with redsn0w version 0.9.11b1, those with newer devices (iPad2, iPad3, and iPhone4S) can join the downgrade fun too! In a radical departure from previous versions of redsn0w, it now directly supports restoring IPSWs to your device. The first use of this new feature implements a hack that allows A5 downgrades without a bootrom-level exploit.
    Today, the new version of redsn0w that MuscleNerd promised has been released, allowing A5 iOS device users to join in on downgrading their firmware. MuscleNerd says that the new downgrading process doesn't require a bootrom exploit. The version, dubbed redsn0w 0.9.11b1 is compatible with Mac OS X and Windows. If you are running redsn0w 0.9.11b1 in Windows, it is highly recommended that you run the software in administrator mode by right-clicking on the icon and clicking, “Run As Administrator.” The download links for both of the new redsn0w versions can be found below:

    The new feature allowing A5 iOS device users to downgrade their firmware can be found under Extras>Even More>Restore from the redsn0w navigation menu. To use this new feature to downgrade your A5 device, you must have your SHSH blobs saved. For example, if you want to downgrade your iPhone 4S to iOS 5.0.1, you must have your iOS 5.0.1 SHSH blobs saved. Apple is no longer signing iOS 5.0.1, so if you haven't saved them already then you won't be able to save them now. Apple also has the ability to patch this downgrading method in a future firmware update, so take advantage of it while you can.

    Another warning that the iPhone Dev-Team makes us aware of is since the new downgrade measure updates the iOS firmware before downgrading, it will update your baseband. For this reason, if you are relying on an unofficial iPhone unlock, do not use this new downgrade method until a workaround can be found. If you used the SAM technique (now patched by Apple) to unlock your iPhone, then you can use this new downgrading method without losing your unlock.

    One last warning from the iPhone Dev-Team is since the new version of redsn0w is built with a ton of new code, they recommend using the more stable redsn0w 0.9.10b8b unless you plan to be taking advantage of the new downgrading feature. This will give them some time to work out the bugs. There is no reason to run this new version of redsn0w over your existing jailbreak because there are no improvements to the jailbreak in the latest version of redsn0w.

    If you are ready to finally have the freedom to downgrade your iPhone 4S, iPad 2, or The new iPad, then you’ll definitely want to download this new redsn0w release. Be sure to thank the iPhone Dev-Team for this amazing news!

    Sources: Dev-Team Blog
    This article was originally published in forum thread: Redsn0w 0.9.11b1 Released started by Anthony Bouchard View original post
    Comments 91 Comments
    1. oneduality's Avatar
      oneduality -
      Quote Originally Posted by exNavy View Post
      Just so it is clear. I was on 5.0.1 and restored right back to 5.0.1 with redsnow. You don't need to update your iphone yourself to 5.1.1, redsnow will update it for you. Redsnow is buggy. It took me 3 tries before it worked.

      Watch your redsnow pop ups. The first pass on the restore it will display restoring to hacked iphone4,1_5.1.1, the second time it says restoring to iphone4,1_5.0.1 (or whatever firmware you are restoring to.
      I didn't have to do that... I went from 5.1.0 to 5.0.1 .. it just took a few tries .. the first few attempts failed

      I believe it requires the 5.1.1 firmware just to pull data from it to properly stitch the 5.0.1 firmware... using apple's signing of 5.1.1 to sign 5.0.1

      Just my theory =)
    1. EVO's Avatar
      EVO -
      Aehmlo read the post I made on page 2 and you will have a better understanding
    1. Aehmlo's Avatar
      Aehmlo -
      Quote Originally Posted by 6thDAY View Post
      Aehmlo read the post I made on page 2 and you will have a better understanding
      But I thought you couldn't save APTicket without a bootrom exploit.
    1. Simon's Avatar
      Simon -
      Quote Originally Posted by Aehmlo View Post
      But I thought you couldn't save APTicket without a bootrom exploit.
      You can. And tiny umbrella does.
    1. Aehmlo's Avatar
      Aehmlo -
      Quote Originally Posted by Simon View Post
      You can. And tiny umbrella does.
      For A5? Huh.
    1. EVO's Avatar
      EVO -
      Affirmative sir!
    1. Aehmlo's Avatar
      Aehmlo -
      Man, where was I getting my information from?
    1. EVO's Avatar
      EVO -
      Modmyi contains only the most useful and vital information.

      Always refer here first
    1. Aehmlo's Avatar
      Aehmlo -
      Quote Originally Posted by 6thDAY View Post
      Modmyi contains only the most useful and vital information.

      Always refer here first
      Usually do. Will ONLY refer here in the future.
    1. Razorinthe60s's Avatar
      Razorinthe60s -
      so i tried to remote fetch shsh's and it saying not found but i was jailbroken on 5.0 and made the mistake of updating to 5.1. Is there any other way to fetch shsh's?
    1. EVO's Avatar
      EVO -
      Quote Originally Posted by Razorinthe60s View Post
      so i tried to remote fetch shsh's and it saying not found but i was jailbroken on 5.0 and made the mistake of updating to 5.1. Is there any other way to fetch shsh's?
      the true way to fetch or determine if you have any shsh is download tinyumbrella and using that
    1. gerasimoskk's Avatar
      gerasimoskk -
      Dev-team the best!Great work guys keep digging!
    1. oneduality's Avatar
      oneduality -
      Quote Originally Posted by Aehmlo View Post
      But I thought you couldn't save APTicket without a bootrom exploit.
      Clearly it works.. I'm an example.. my 5.1 4s is now back to 5.0.1 using Tiny Umbrella's SHSH's

      Quote Originally Posted by zrevai View Post
      Not correct??? What's the exact error?? Got a screen shot of the error??? What does it say your iOS version is in Settings - General - About???
      I wasn't able to restore my backup either, it complained about the version.. Reason being, I'm sure.. is because the backup is for 5.1 so you can't restore a 5.1 backup to a 5.0.1 device... makes sense

      This is slightly off topic, but not really .. seems to me that with all the people that forget to save their SHSH files that it would be a very handy feature to build that directly to redsn0w as a last step .. once the JB is complete and the device is rebooted, you'd think that another function could be to retrieve those files and prompt the user to maybe even e-mail them or store them locally.. force you to do it as a last action.. perhaps even immediately push them to Cydia or something..

      A surprising number of people seem to either forget this step, or somehow didn't even know to do it.. for me personally, it's something I do always do right away.. ( though I didn't do it THIS time since it was a downgrade rather than an upgrade )
    1. Razorinthe60s's Avatar
      Razorinthe60s -
      Thanks for advice,guess I have to hope for next jailbreak of 5.1 or 5.1.1.
    1. confucious's Avatar
      confucious -
      0.9.11b4 is the latest version which should fix most problems Dev-Team Blog - 5x redux
    1. EVO's Avatar
      EVO -
      Quote Originally Posted by confucious View Post
      0.9.11b4 is the latest version which should fix most problems Dev-Team Blog - 5x redux
      hopefully that should resolve restore issues from most users
    1. chilo420's Avatar
      chilo420 -
      Holy fudge!! I got my 4S with 5.1 out the box...I had 5.0.1 blobs from a previous 4S ....they stitched and I'm on 5.0.1 I thought blobs were device specific?
    1. EVO's Avatar
      EVO -
      Quote Originally Posted by chilo420 View Post
      Holy fudge!! I got my 4S with 5.1 out the box...I had 5.0.1 blobs from a previous 4S ....they stitched and I'm on 5.0.1 I thought blobs were device specific?
      is this a joke?
    1. celeron's Avatar
      celeron -
      I hope it is :/
    1. chilo420's Avatar
      chilo420 -
      I swear to the almighty I just got this 4S with 5.1 preloaded onto it about 2-3 weeks ago i downloaded redsn0w thinking I could downgrade instead it updated me to 5.1.1 I was pissed off ...then I was looking through the settings and saw shsh blob stitching so I found a blob from the 4S that got warrantied swapped out for 5.0.1 I said eff it I got nothing to lose so I did a stitch picked the 5.0.1 ispw the one with 6 not 5 took about 3 tries went to use the bathroom then went back to my Mac and I almost fainted...downgrade successful!!!!