It’s finally here folks, the official downgrade tool for A5 devices!

Indeed, you can now downgrade your iPhone 4S, iPad 2, or new iPad (iPad 3) with the latest version of RedSn0w 0.9.11b1. Downgrading will allow you to perform an untethered jailbreak on your iPhone 4S, or iPad 2 running iOS 5.0.1 firmware.

Check out our tutorial for the step-by-step downgrade instructions inside…

Note: You must have your SHSH blobs for iOS 5.0.1 either stored locally by means of TinyUmbrella, etc., or Cydia must have your 5.0.1 blobs for this downgrade to work successfully.

Step 1: Download the latest version of RedSn0w 0.9.11b1 from our downloads page.

Step 2: Download the latest firmware (5.1.1) for your device from our downloads page, along with the 5.0.1 firmware.

Step 3: Place your device into DFU mode.

Step 4: Run RedSn0w 0.9.11b1, and make sure RedSn0w detects your device in DFU mode. Navigate to Extras > Even more > Restore and click IPSW under the IPSW section. RedSn0w will then ask you for your iOS 5.0.1 IPSW. Once you locate iOS 5.0.1, RedSn0w will ask your for the latest firmware (iOS 5.1.1).

Step 5: Once both firmwares have been validated, it’s time to locate your saved SHSH blobs. If you’ve jailbroken your device before, you should have those available on Cydia, and therefore you can use the Remote option. If you’ve never jailbroken your device before, but you saved your SHSH blobs with a tool like TinyUmbrella, then choose Local and browse your computer for your blobs. We’d recommend clicking the Remote option first.

Step 6: Once your blobs have been verified, there is nothing left for you to do, just let RedSn0w execute the full process. First RedSn0w will install a hacked version of the latest firmware (iOS 5.1.1), and then it will downgrade your firmware to iOS 5.0.1.

Step 7: Upon downgrading successfully you will be presented with a success message. Now all you have to do is setup your device, and verify that you are now on iOS 5.0.1 via Settings > General > About on your device.

What’s Next?

Most people will want to jailbreak their newly downgraded device. If you’re using an A5 device like the iPad 2, or iPhone 4S, you can now jailbreak using Corona-A5. You can do this directly from RedSn0w. We will have a tutorial that shows you how to jailbreak your A5 device using RedSn0w in the near future. Until then, you can always use a tool like Absinthe to jailbreak as well.

Were you able to downgrade successfully? Have any tips or tricks? Please share them below!

Important: If you rely on a software unlock or SIM interposer for your iPhone, beware! This method will update your baseband, and you could permanently lose your unlock.

  • Can downgrade to 5.1?

    • Read the articel if u saved the shsh for 5.1 then u can downgrade.

  • So it’s not possible to stick your blobs yet?.. so that u could always downgrade to this particular firware/ipsw?

    • You probably can (don’t have an A5 device so I can’t check) but they’re not usable until there’s a bootrom-level exploit for A5.


    • Paul Flahan

      I was able to stitch my 5.0.1 SHSH to 5.0.1 firmware for my iPhone 4S and my 5.1 SHSH to 5.1 firmware on my iPad 3.

  • i have ipad3 5.1 can i downgrade`??

    • Miguel Meza


  • we hope to see it on all ios

  • Jeff, help me please, it stucks on the 2nd Flashing NOR (5.0.1). I’ve tried to restore several times but failed on that point.
    iPad 2 WiFi 5.0.1. Run redsn0w as administrator.

    • pfff, no one can help me? What kind of jailbreak community is that? : /
      I can’t turn on my iPad, I can’t use it, I need it tomorrow at work! 🙁

      • What is you iPad currently doing?
        If you have a twitter, contact me @Max_Kas it will be easier to fix this.

        If not than Sorry but this isn’t really the best place for device troubleshooting like that. I suggest finding a current thread on macrumors or other JB sites about it. Just do a google search with most recent showing first.

  • how about iphone 4??? can i Downgrade from ios 5.1 to ios 5.0.1??

    • Miguel Meza


  • Anyone else notice that during the downgrade process Redsn0w detected the iPad as an iPhone 4 and upon completion it came up as an iPad 2?

  • Ok I ran into a slight issue with this, it worked perfect up until after it had finished and I wanted to restore my backup, I was running 5.1 and iTunes refused to let me restore a Backup from a Newer iOS version, Being a backup I made using 5.1 and trying to restore it onto my newer downgraded 5.0.1. There is a work around. You must backup using iTunes (NOT iCLOUD) before downgrading your phone, once you have done this follow the steps above to downgrade. Once this is done Jailbreak your phone once again using redsn0w or absinth. Before you go back into iTunes you have to locate your iPhone/iPad Backups on your Computer. On a Mac is ~/Library/Application Support/MobileSync/Backup find your Backup, its important to take note of the time you made your backup as you will see so many folders if you do regular backups, once you have located your Backup open the folder and search for info.plist file, open this in a text editor and simply look for the string that says Product Version below it will say 5.1 or 5.1.1 depending on what firmware you was on while you did this backup, simply change the the string to 5.0.1 and save the file, open iTunes and right click your iPhone and click Restore From Backup. You can now select your backup to restore. I hope this helps anyone who gets stuck in this situation, took me a while to figure it out!

    • I’v read this a bit too late, just realised I cant use my icloud backup to get back all my apps and settings back, says iv never backed up on icloud which i have (today). Must be because of the firmware numbers.

      Gonna upgrade back up to 5.1.1, restore using icloud backup, backup using itunes, downgrade with redsnow, then restore using itunes LONG 🙁

      • Can’t you fake 5.1.1 on your device and restore?

      • how do you fake the firmware? Cydia app?

      • KZYM

        I’ve not save SHSH in 5.1.1 , Now I upgrade to 6.0 without SHSH. Can I downgrade to 5.1.1 ? Thank you all.

    • worked like a charm. i keep getting an icloud pop up asking me to enter the pass for a what is that about?

  • Miguel Meza

    you CANT do New iPad 3 without SHSH blobs and no one has them 🙁 so its IMPOSSIBLE!!!

    • You are wrong u can downgrade from ios 5.1.1 to 5.1

      • He is actually correct. No jailbreak for iPad 3 means no SHSH blobs, which is needed to downgrade.

      • U can just get them with tinyumbrella so whatever.

      • I saved my shsh blobs for 5.1 with tinyumbrella so wtf are you talking about. As long as you were on the firmware while Apple was signing it you should have been able to.

  • Nice one Jeff,very simple process and helpfull

  • I have NO blobs saved 🙁

    Pity! 🙁

  • so when i downgrade my ipad3 to 5.0.1 can i jailbreak it?

    • Miguel Meza


      • yo do like the CAPLSLOCK down’t u ? your right thow

      • Hy Miguel,

        Would like to know if when u jailbreak an iPhone (eg iPhone 4S) the shsh blobs get saved automatically on Cydia?

      • I want to know the same question? I did jailbreak my iphone 4s then upgraded to latest and can I downgrade using remote option on redsnow or I must have to save shsh blobs on cydia or somewhere?

  • so why the fuck is this here???

    Indeed, you can now downgrade your iPhone 4S, iPad 2, or new iPad (iPad 3) with the latest version of RedSn0w 0.9.11b1. Downgrading will allow you to perform an untethered jailbreak on your iPhone 4S, or iPad 2 running iOS 5.0.1 firmware.

  • Anonymous

    Looks like the new jb will work on 5.1.1. Great news for those on 5.0.1 🙂

  • i’m pretty shire about dis but asking can’t hurt 😉
    i’m running an ipad 2 on 4.x
    will i be able to update to 5.0.1 (SHSH i do have )
    i know with an iphone 4 the other way stitch i is possible

    • Anonymous

      Yes you can. Redsn0w 0.9.11 Will upgrade to latest firmware and downgraded to 5.0.1
      If you want to to back to 4.3.3 you can use Tinycfw to create 4.3.3 custom firmware with latest baseband.

  • is it important to get blobs for my 4s with ios 5.1 if so!! how can i do that ??

    • Use TinyUmbrella.

      • its not jailbrocken so!! can i get my blobs ?? if so can you tell me how plz 🙂

      • Anonymous

        it dont have to be JB

  • could you plz pm me on facebook if you would like to help plz 🙂

  • Any news? when will iFaith able to dump SHSH Blobs for iphone 4s or A5 device?
    I have a iphone 4s with 5.0.1 but need to save SHSH.


    • Use TinyUmbrella.

    • You could also jailbreak, if you haven’t already, and use Cydia to save your SHSH blobs.

  • if i bought my iPhone 4s at 5.1 can i use my SSH from my iPhone4 and do the SSH because i never had my iPhone4s jailbroken yet

    • Hy,

      Well i don´t think you do, cuz SHSH blobs are specific for each iPhone.
      Meaning that u can only use the SHSH blobs from the original iDevice

    • No you can’t, you have to wait.

  • Can anyone actually tell me if when an iPhone gets Jailbroken, are its SHSH blobs saved automatically on Cydia??

    • Yes they are.

      • Thanks, so that means that if i try to restore it back to iOS 5.0.1, redsn0w will get the saved blobs from cydia automatically right?

      • You will have to select the remote option for redsn0w to pull SHSH blobs from Cydia.

      • You will have to select the remote option for redsn0w to pull SHSH blobs from Cydia.

  • everything worked out fine :DDD thnx god i had my SHSH blobs saved local and thru Cydia that’s why i always will save it and no matter what stay with jailbreak thnx again for this unique feature

  • if i have 5.1.1 but no blobs can i get the blobs somewhere?? or im fucked????

    • I think their is a way online if you have been jail broken already and their is a feature on redsnow of getting SSH from others

      • yeah , this phone was jailbroken , is it saved somewhere??

      • Anonymous

        yes on cydia

  • i tried on windows but it says i cant restore to this firmware when i clicked 5.0.1 and yes i have been jailbroken on 5.0.1 any ideas

  • Hi guys . i have an ipad 2 bought with 5.1 in it , can i save the shsh for 5.1 and downgrade to 5.0.1 ?

    • Anonymous

      no. You will need to wait until there is an official JB for 5.1

  • did everything right , when it came to jailbreak it on absinthe it gave me a restore error.. and then i tryed to jailbreak using the new redsn0w. and it told me that the profile jailbreak can’t be installed . sonow i onto my second downgrade to see if it fixes anything.. im currently on ios 5.0.1 (9A405)

  • Just wait for ios 5.1 or later jailbreak for pod2g to  released jailbreak for public coz pod2g has successfully untethered iPad 3 on iOS 5.1.1 with no errors 🙂

  • To see your SHSH blobs you can use Tinyumbrella or in Cydia in the “home page” all the way up you should see in green SHSH (and the blobs you have saved) example SHSH 4.1 5.0.1 5,1 5.1.1

  • hi ive saved shsh blobs yet i still cant downgrade on windows?

  • mk santiago

    hey guys I’m getting this Baseband update!!!
    warning! if you continue, your BASEBAND WILL BE UPDATED TO THE VERY LAST iPhone 4S baseband. what should i do! i don’t think its good update the baseband is it ?
    i think I’m doing something wrong! I need help!!!

    • Unless you rely on an unlock upgrading the baseband is ok and part of the downgrade process.

      • mk santiago


    • Anonymous

      if you’re not using a imposer to sim unlock your phone, you should be fine

  • can someone help me e.g pm me or summin

  • This is amazing… Work very well on my iPad2 5.1.1. Now, am running 5.0.1:) Thanks Jeff

    • may i know how long did it take to download the hacked ipsw through redsn0w?

  • HI, im wondering if for the “download the hacked 5.1.1 ipsw” part, is it a patch one to your already downloaded 5.1.1 ipsw, or a brand new one which is really large (800++ MB) ?

    so that i know how long this process will take. ANYONE WHO SUCCESSFULLY DOWNGRADED CAN REPLY PLS? THXX.

  • mk santiago

    ok, i have just finished with the downgrade, when i run redsnow 0.9.10b8b and try to jailbreak i get this error message (jailbreak fail! please be sure device is actvated (1404)) what is this ?

  • chinh pham

    Great tutorial !
    I got a 4s but dunno if I should downgrade my 5.1 to 9A405 or wait for the 9A406 patch…
    Not sure if there is much of a difference….but I guess I prefer to do it only once.

  • Dillon Vaghela

    i get error and done everything correctly when the bar comes up on my iPhone it says error restored failed!

  • Dillon Vaghela

    i get error and done everything correctly when the bar comes up on my iPhone it says error restored failed!

  • mk santiago

    GREAT NEWS I’m done with the jailbreak, Cydia installed. thanks guys

  • Ive been stuck on Uploading iBEC for 40mins. Anybody else experiencing this?

  • Can we downgrade the new ipad 5.1.1 to ios 5.0.1 ?

  • Anonymous

    how can i save blobs please a complete way

    • You are too late buddy..but you can google TinyUmbrella and find out how to be in the safe side in the near future

  • Anonymous

    Can this work for iPhone 4 too? Whenever I try to downgrade (yes I have my blobs) I can’t stop all the iTunes errors. Bypassing it with Redsn0w would be helpful!

    • It’s work since long time you have to recheck the procedure to downgrade and make sure the shsh you have is for the right ios and the right iphone 4.

      • Anonymous

        Thanks! I do know the process for downgrading. I’ve done it many times before, but lately, I keep getting 16xx iTunes errors when I try. None of the “fixes” I found worked for me, so I’m on 5.1 now when I was trying to restore to 5.0.1. Very happy for this other way of downgrading. I’ll give it a go in a day or so.

  • please tell me that this does work with iphone4(a4 devices);-)
    thanx jeff

    • That’s work since long time ago just you need the right SHSH for your device and the frimware you want to downgrade too..

  • JC

    Hi, I have and iPad 2 on 5.0.1 with saved SHSH locally, can I use those SHSH to downgrade another iPad on 5.1 which was never jailbroken? Or the SHSH are per device? thanks!

    • SHSH is unique per device and frimware version.

      • JC

        Thanks! I better wait for the 5.1.1 jailbreak then.

  • I bought iPad2 on same day that new iPad was released(with 100€ lowered price of course 😉
    But I could not save my SHSH 5.0.1 then or later 🙁
    And I kinda needed to restore the iPad2(5.0.1), cuz it does not sync w/ iTunes(have tried diff. computers etc… Still my iPhone 4 syncs fine)

    • Anonymous

      What is your iTunes Version?….u are using rt now?…

  • Anonymous


    • Cydia create them for when you choose remotely resn0w search for the appropriate SHSH for the desired frimware you want to downgrade to ..

    • and Oh you cannot creat SHSH now for downgrading you are too late 🙂

  • Any news for 9A406 Build of iOS 5.0.1 for iPhone 4s?

    • how long should it take mine is still stuck at working. Should I try again

  • how is one supposed to get saved SHSH for the new iPad. ??

    • You cannot your new iPad comes with 5.1 already you can update it to 5.1.1 and wait for @pod2g to Release the jailbreak..

  • Anonymous

    either the local or remote is not working in step 5? how many mins. to wait till it will come out?

    • It’s seem you don’t have the right SHSH for 5.0.1 or eve 5.0 so you have to wait till @pod2g release the new jalibreak for 5.1.1

      • I just retried it, it now said that it was successful.

      • Anonymous

        Thx Ahmad N. for ur reply i guess so! since i remember i did accidentally upgraded to 5.1 before so most probably my SHSH was already gone?…

  • How do make Cydia save your SHSH blobs? Does it do it automatically?

  • I keep getting 127 &126 errors when opening redsn0w and my iPad 2 wont connect does anyone know how to fix it