iPhone Dev Team Releases Redsn0w 0.9.15b1; Includes Support For Tethered iOS 6 Jailbreak, New iOS 5.x.x Restore Functionality

iPhone Dev team has just released Redsn0w 0.9.15b1, which includes a large number of features and improvements.

Redsn0w 0.9.15b1 finally adds native support for tethered iOS 6.0 jailbreak  and installs Cydia, so you don’t have to install it manually. It also includes the new iOS 5.x.x restore feature, that will allow iOS 5.x.x users to restore their devices to any iOS 5.x.x firmware if they’ve the appropriate SHSH blobs.

Here’s the list of new features and improvements in Redsn0w 0.9.15b1:

  • restore from any 5.x iOS to any other (up, down or the same) 5.x iOS on all devices as long as you have the correct blobs (see more below)
  • Cydia now included in the tethered 6.0 jailbreak on A4 devices
  • automatically “Just Boot” tethered when qualifying A4 device connects in DFU mode
  • untethered 6.0 jailbreak on old-bootrom 3GS
  • untethered 6.0 hactivation on any 3GS or iPhone4
  • directly restore pre-A5 devices to earlier firmware — no more complicated 15-step how-to’s with stitching, iTunes errors, and “hosts file” concerns
  • fetch new signed blobs for any IPSW (present or future — no redsn0w update required) using Extras->SHSH Blobs->New
  • block the BB update for any 3GS or iPhone4 restore (past, present, or future — no redsn0w update required) using Extras->Even More->Restore
  • deactivate any iPhone, useful for testing your “official” unlock status through iTunes.  (Please only deactivate your own iPhone!)
  • activation status shown on “Even more” page
  • significantly more (very nerdy) info returned by “Identify” button when device is in Normal mode
  • tethered jailbreak of ATV2 supported (but the only thing available for it is the SSH2 custom bundle available here — no Cydia yet.  Must use “Select IPSW” for tethered boot of ATV2 for now).
  • auto-exit WTF mode for older devices with broken buttons
  • any time a set of blobs is fetched remotely (from Apple or Cydia), redsn0w also saves them locally (and will check there first if you click “Local”)
  • for your future restoring convenience, you should also submit all of your past and present TinyUmbrella blobs to Cydia if you haven’t done so yet.  Resubmitting is okay and won’t cause conflicts.

Dev team has also provided the following details about the re-restore functionality:

1. redsn0w now lets you restore an A5+ device from any iOS5 to any other iOS5 as long as you have correct 5.x blobs for the starting (current) and ending points of the restore

  • APtickets eliminated “higher-version only” comparison of firmware restores (just like BBtickets did for the baseband)
  • example restores supported by redsn0w if you have the correct blobs: 5.1.1-to-5.0.1, 5.0.1-to-5.1.1, 5.1.1-to-5.1.1, 5.0.1-to-5.0.1
  • if you don’t have the blobs locally, let redsn0w try to fetch them remotely (redsn0w always tries both Apple and Cydia).  Any succesful remote fetch also saves a local copy too.

2. You DO NOT QUALIFY for iOS5-to-iOS5 restores if you got to your current 5.x via an OTA update

  • the tickets saved by Cydia, redsn0w, and TinyUmbrella do not cover OTA update ramdisk images
  • even if they did, it’s the “wrong kind” of ramdisk (you’d need to start at that earlier pre-OTA FW)
  • devices fresh from factory or refurb may fall in the “does not qualify” category (your results will vary)
  • it’s okay if you previously got to 5.x via an OTA update, as long as your current 5.x was installed via a normal iTunes restore.  All that matters is how you got to your current 5.x most recently
  • redsn0w detects an OTA/normal-restore APticket mismatch very early, so if you don’t know your status there should be no harm in trying.  Any device in recovery mode after such a mismatch can boot normally again just by going back to “Even More” screen from the “Restore” screen (or use “Recovery Fix” if you quit redsn0w before doing that).

3. Unlike the A4 devices, redsn0w can’t (usefully) prevent the baseband updates of A5+ iPhones and iPads.

  • and so, redsn0w automatically flashes the currently signed baseband when it does A5+ restores, even if those basebands didn’t come with the original firmware
  • stay away from this if you have an unofficial unlock that isn’t supported by the newest baseband
  • the least-tested baseband update code in redsn0w is for iPad2,3 and iPad3,2.  Please give any feedback on those iOS5 restores in the comments section below.

4. iPad2 owners (all three models) with saved 4.x blobs can use those instead, even from 6.x

  • if you have both 4.x and 5.x iPad2 blobs, you can always get to 5.x via the 4.x blobs, even if you’re currently on 6.x
  • you cannot get to 5.x from 6.x without the 4.x blobs (but you may still qualify for the iOS5-to-iOS5 restore described above)
  • if somehow you have 4.x blobs but no 5.x blobs, you can still go down to 4.x from 6.x
  • this only applies to iPad2 owners (they’re the only A5+ devices that ever had a public 4.x FW)
  • redsn0w still supports (but doesn’t require) jailbreaking A5+ devices at 5.0.1 and 5.1.1.  Just head back to the first page after re-restoring to 5.x.  It’s always much faster to jailbreak those FW versions with a freshly-restored device, before letting iTunes restore from a saved userland backup.

And finally, some random details:

5. ultrasn0w isn’t yet updated for 6.x

  • by now you probably should be taking advantage of the extremely cheap IMEI-based unlocks of iPhones sold by established online retailers like http:://cutyoursim.com
  • still, IMEI-based unlocks don’t work in all cases.  We’ll announce when ultrasn0w is ported up to 6.x
  • redsn0w will still hactivate your 3GS or iPhone4 if you run it before the device is activated.  Due to the current tethered 6.x JB status, redsn0w now hactivates 6.x without requiring subsequent tethered boots.  If you accidentally hactivate with redsn0w, use the “Deactivate” checkbox available from the Jailbreak screen, not the normal one in “Even more”

6. As always, redsn0w lets you “Fetch” the SHSH blobs currently flashed onto your pre-A5 device

  • use this if you’re at 5.x or 4.x but without having saved your blobs when the window was open
  • this is only useful when Apple is no longer signing the firmware, otherwise Cydia/redsn0w “New”/TinyUmbrella blobs are superior (but you’re welcome to fetch your 6.0 blobs this way anyway)
  • fetching blobs in this fashion will automatically forward them up to Cydia, as well as save a local copy

iPhone Dev team hasn’t provided any details about the untethered iOS 6.0 jailbreak or jailbreak for newer iOS devices like iPhone 5 and iPod touch 5G.

That’s a lot of information to process, but don’t worry, we’ll post how-to tutorials shortly to show you how to use the new features, so stay tuned here at iPhone Hacks or follow us on FacebookTwitterGoogle+ or subscribe to our RSS feed.

You can download the latest version of Redsn0w 0.9.15b1 rom this link.


If you need help, check out our step by step guide to:

Please feel free to ask us any question if you need any clarifications.

[via Dev team's blog]

Like this post? Share it!

  • http://www.facebook.com/1stClass Classic A Lew

    No iPhone 5 JB ?

    • -aLx

      Not Yet.

    • Thatkidmikeg

      If u wanna just use it in another. Carrier like tmobile. Go to ebay and serch. Iphone factory unlock. It works great and it’s 4 ever

  • http://www.facebook.com/people/Emmerson-McChriston/500146372 Emmerson McChriston

    What about iPhone 4S jailbrea

  • Mike

    I tested this on iPhone 4 ios6. Jailbreak works but downgrade to 5.1.1 failed twice

    • grim reefa

      As stated in the info above, You cannot get to 5.x from 6.x without the 4.x blobs. Try reading, it helps.

      • Kimk69

        Lol, maybe you should read it again.
        That’s only for the iPad 2 models.

  • Jenny

    Jailbrake for 4s!!!! I can’t stand this bloody waste of time without Cydia. Please, please pretty please, hurry up. Thank you

  • Bin

    not uuntethered

  • Discreto

    It is not clear if Ipad 2 can be downgraded from 6 to 5.x.x having both sshblobs 4 and 5 AND REMAIN UNTETHERED. Please help

    • http://www.iphonehacks.com iPhoneHacks

      If you want to downgrade to iOS 5.x from iOS 6 then you will need iOS 4.x and iOS 5.x SHSH blobs. If you downgrade successfully to say iOS 5.1.1, then the jailbreak will be untethered.

  • stepenlu07

    Finally!!! after a few weeks after i accidentally upgraded my ipad 2 to ios 6 i successfully downgrade to 5.1.1 then jailbreak. thank god for my 4.3.5 blobs and for dev team that make this redsnow thank you!

  • Jason Crane

    I have run redsnow 0.9.15b1 now 7 times on my gsm 4 and it still will not install Cydia. I can’t inject Cydia via SSH either because port 22 on my phone has been closed somehow and I can’t figure how to reopen it. Some one please help.

    • http://www.iphonehacks.com iPhoneHacks

      Check out our step-by-step guide, you are probably haven’t boot tethered: http://www.iphonehacks.com/2012/10/jailbreak-iphone-4-iphone-3gs-redsn0w-ios-6-0.html

      • Jason Crane

        No, thats not it either as I have ‘just boot tethered’ after each attempt

        • http://www.iphonehacks.com iPhoneHacks

          Stupid question, but did you search for Cydia using Spotlight?

          • Jason Crane

            Yeah, I just did and nothing. Even though redsnow claims the jailbreak was successful and I’m getting pics of the ram disk as well I can see the script of exploit run and the pineapple after the boot tether I’m still able to power my device on and off to where it successfully reboots. I shouldn’t be able to do that on a tethered jailbreak, should I? It would appear to me that neither the jailbreak or the installation of Cydia are successfully being installed on my device. I appreciate your help it’s Just frustrating having been able to jailbreak all my devices for the last 5 years from IOS 1-5 with little to no problem with the exception of IOS 6 now. I’m registered developer and have been on IOS 6 all of it’s beta releases and the current release now for nearly a total of 5 months. I’ve been waiting for this release of redsnow because, as I stated before the SSH port has been closed and I’m unable to reopen it. Would you of another way to open it or some sort of brute force jailbreak?

          • http://www.iphonehacks.com iPhoneHacks

            Are you sure you are using Redsn0w 0.9.15 beta 1?

            The tethered jailbreak prevents you from using jailbreak apps like Cydia and apps like Safari won’t work. It will allow you to reboot without an issue.

            Suggest resetting your iPhone, hold the home and power button till you see the Apple logo and trying again before trying the Restore option.

          • Jason Crane

            Yep definitely using the latest redsnow. I just tried the hard reset and still nothing. All apps are working fine. The only thing I haven’t tried is restoring to factory settings thru iTunes.

          • Jason Crane

            hoping if nothing else a system restore will reopen port 22

          • http://www.iphonehacks.com iPhoneHacks

            Don’t forget to take a backup

          • Jason Crane

            both icloud and to my computer

          • Jason Crane

            That did it. System restore set up as a new iphone then jailbroke and resyncing. Thanks for the help.

          • http://www.iphonehacks.com iPhoneHacks


          • Jason Crane

            Going to give it another shot here after I do a restore thru iTunes.

  • yekyaw

    why my ipad 2 can’t do …? please help me… :(

  • Greg

    Re: not if you got your 5.x via OTA, does anyone know if the fact that I used Absinthe to jailbreak remedies that? I initially updated to 5.0.1 with the OTA, but I thought Absinthe updated and then restored during the JB process…

  • bubu

    need to jb my ipad 2 ios 6 !!!!!!!!!!!!!!

  • http://www.facebook.com/profile.php?id=1081419263 Joseph Pham

    I left my ipad2 with my nephew and the next thing i know is that it now disabled. I’m running 5.0.1 jailbroke. Please help anyone… your input is greatly appreciated.

  • Denniz

    hi ihave iphone 3gs ios 6 and want to downgrade to ios 5,1,1 but dont
    have the blobs for it BUT have the blobs for os 4 , so if i downgrade to
    it then put the shsh for ios 5 with thelatest redsn0w like here
    —->My link
    thanks if you can help me