Download RedSn0w 0.9.10b3 For Mac And Windows To Fix MobileSubstrate Error

Yesterday we told you that RedSn0w was updated to version 0.9.10b2 to fix an error with the launchctl extension that effected the way certain Cydia tweaks ran and installed. With the launchctl extension working with the iOS 5.0.1 Untethered Jailbreak after first re-running RedSn0w over you existing Jailbreak, all errors were thought to be fixed. It looks like, however, that when you ran RedSn0w 0.9.10b2 over your existing Jailbreak it caused an error with MobileSubstrate (an extremely crucial extension library that all Cydia tweaks rely on). Thus, the iPhone Dev-Team have released RedSn0w 0.9.10b3 to fix this error with MobileSubstrate.

If you would like to fix the MobileSubstrate error present on your iPhone, iPod Touch or iPad Jailbroken on the iOS 5.0.1 firmware untethered with RedSn0w 0.9.10b2. You can either reinstall MobileSubstrate from Cydia or download RedSn0w 0.9.10b3 and Re-Jailbreak your iOS device by running RedSn0w once again (make sure you deselect the install Cydia option).

If you are interested in downloading RedSn0w 0.9.10b3 you can download it from the iJailbreak Downloads Section. Additionally you can use one of the download links below:

Download RedSnow 0.9.10b3 for Mac OS X

Download RedSnow 0.9.10b3 for Windows

If you have any questions or thoughts about RedSn0w 0.9.10b3 or MobileSubstrate errors please leave them in the comments section below…

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  • Brian

    So i can run thr 3 over my current jb?

  • Jared Cleghorn

    Does this apply to people who jailbroke with redsn0w 0.9.10b1, but then installed Corona 1.0-3 over it?

  • Bob

    Can i run this version3 over the previous redsn0w 0.9.10b1currently on my iphone4? i have read from other sites it will caused problem and you’ll be stuck in safe mode????

  • MikeOck

    I would do what the bottom paragraph says if you have the B1 or B2 installed

    “If you would like to fix the MobileSubstrate error present on your iPhone, iPod Touch or iPad Jailbroken on the iOS 5.0.1 firmware untethered with RedSn0w 0.9.10b2. You can either reinstall MobileSubstrate from Cydia or download RedSn0w 0.9.10b3 and Re-Jailbreak your iOS device by running RedSn0w once again (make sure you deselect the install Cydia option).”

  • MikeOck

    The only problem I’m running into is that iBooks doesn’t work. Anyone else having that problem?

  • Ali Mirabolfathi

    I books doesnt work for me tooo plz fix it i need i books guys i restore my ipod and jailbreak with redsnow 0.9.10.b3 but when i open ibooks its give me an error and telling me that to restore with itunes and after that will crash

  • John X

    Remove ibook from and reinstall from appstore. Do not open it Then search in Cydia for ibook fix2 app and run it. Perform then a hard reboot. (hold down power and home buttons until iphone or ipad restarts )and you are all set

  • Kareen

    Interesting. I JB my phone with 10b1 and the only time I had a problem surface was after I downloaded SBSettings, which caused my phone to crash a few times and get stuck while trying to respring. As soon as I deleted it and went with UISettings, all of my problems went away. Just FYI.

  • MikeOck

    Just got my iBooks to work. First you have to delete the existing iBooks on your device and then reboot. Second thing is to install xsellize repo. After installing the xsellize repo do a search for iBooks Fix for iOS 5 and install it. I rebooted then went to the apple app store downloaded iBooks rebooted once more and it worked. I’ve tried different combos of steps without rebooting and it didnt work. I finally went ahead and rebooted each time I installed something and now it works great! I hope this helps you.

  • MikeOck

    @Kareen: I was going through the same thing you were and I was getting pissed that I might have messed my phone up. I you said it just got better and better. Now my phone seems to be a 100%

  • MikeOck

    Thanks man, I didn’t realize you replied. I just posted the same thing above. Again thanks! Happy New Year!

  • Guest

    I jb using b1, and tomtom was working fine, but hang at tomtom logo after i upgraded mobilesubstrate. i noticed iBooks is not working too. I then apply b3 without cydia as instructured, but still iBooks and tomtom are not working.

  • Huntercreel

    just did this jailbreak cydia,and winterboard just crash when i try to open them anyone with same problem? sugestions to fix it?

  • anon

    ths link is to b1

  • http://www.ijailbreak.com/ Dusty

    Fixed, thanks!

  • http://twitter.com/TheA1One Anas Barak

    how do i Re-Jailbreak my ipod touch ?!
    do i have to restore it with itunes  and jailbreak it again ?!!!

  • Mekadesigns

    Yep, tomtom not working either

  • Mekadesigns

    TomTom not working, anyone having the same trouble ? Plz respond if anyone finds a solution ! Thx alot ! XD

  • Kir

    Yes you can, just don’t forget do deselect cydia when jb.

  • Azmatic

    im still getting the unexpected error when trying to jailbreak. any one know why?? i have a mac

  • Gargamel

    then i have two ibooks icon and non of them work ? .. :(
    i followed exactly as you said…
    1) remove ibooks.
    2) install ibooks from xsellize (i got ibooks icon)
    3) install ibooks from itunes (one more ibooks icon)..
    all after rebooting :( .. doesnt work

  • Ed

    After this jailbreak, my App Store crashes. Right after the app tries to open, the app just crashes. Anyone else experiencing this?

  • Cadillaklova

    YES! Freaking Pissed about TomTom. I have a paid version and cant use it!!! we need a ibooks and tomtom fix like yesterday!!! :*(

  • Simo

    You need to uninstall spire, and tomtom will start working again.

  • James

    I get the uploading first stage then it gives me unexpected error can anyone help

  • http://twitter.com/aColourEoptian Some Guy

    i just uninstalled Safari Download Manager and my safari works.

  • Vkdc03

    i have tried this JB but then, i respring and it is now stuck at apple logo.. any suggestions?? i also tried rebooting and re-JB but still it doesnt help at all.. anyone please..

  • Commdon

    thanks, that worked for me.

  • Bappy4l

    i restored my iphone 4 ios 5.0.1and tried to jailbreak again and redsnow 0.9.10b3 showing me unexpected error during first stage.
    please help!!!!

  • Meet Idnani

    unexpected error at uploading first stage on Windows XP… help plz

  • Domidoolittle

    I jailbroke my iPod touch 3rd generation IOS 5.0.1. But then I deleted cydia. I was wondering if I can just re-jailbreak it without restoring it? Would anything happen to my iPod?

  • Domidoolittle

    I want to re-jailbreak it so that I can get cydia back!

  • Richard

    i have an iphone 3gs and i downloaded 
    redsnow 0.9.10b3 and ran it and now my iphone is stuck at the apple logo what should i do?

  • Klissan

    im ALSO gettin the unexpected error when tryin to jail break…what do i do????? i have windows xp

  • Klnissan

    im ALSO gettin the unexpected error when tryin to jail break…what do i
    do????? i have windows xp 

  • Felix

    whenever i try and jailbreak my ipod just reboots and i used 10b4 didnt work so i tried 10b3 still doesnt work it comes up as this

  • J Rockwell89

    i have already jail broek my ipod but i need to re install cydia….? 

  • John

    i am having the same problem as you.. if you find any solutions to this problem could you please email me at walukj@yahoo.com

  • Premal_soni

     u need to jailbreak with redsnow 0.9.10b2 is prefect to jailbreak but u have basband 6.15.00 ? so it will done bro good luck…premal

  • Lel52

    I have an Iphone 3GS 5.1 when I try to replace the OS for 5.1 (jailbreak version is says it is not compatible – can the OS be replaced? 

  • Bevis4au

    after I jailbreak my iphone 3gs 4.3.5 using this version of redsnow. will that allow me to unlock it also?? I am currently with ATT and wanna switch to straight talk and use my iphone!! What do I need to to in order to make this work?? HELP ME PLZ ASAP