Tethered Jailbreak For Non-A5 Devices On iOS 5.1 Released By iPhone Dev-Team, Download Now [RedSn0w 0.9.10b6]

Apple released iOS 5.1 midst the new iPad launch yesterday, to which there was no jailbreak available. However, that has all changed now, as the iPhone Dev-Team have released RedSn0w 0.9.10b6 to jailbreak iOS 5.1. There’s one small problem though, this is a tethered jailbreak, which means that you will have to connect your iOS device to your computer every time you want to reboot.

The iOS 5.1 tethered jailbreak is only for non-A5 devices, which means that it will only work with the iPhone 3GS, iPhone 4, iPod Touch 3G, iPod Touch 4G and iPad 1. The iPad 2, the new iPad and the iPhone 4S are not supported. Also, if you want to preserve your baseband for unlock, then you should create a custom iOS 5.1 ipsw firmware and then get on with the jailbreak. Read more below:

Update #1:  First, please read and re-read the above warnings!  With all of that in mind, we realize that some of you non-A5 jailbreakers are itching to get to 5.1, even though there seems to be no compelling new feature there. Because of geohot’s limera1n exploit, those with devices earlier than the iPad2 can test the 5.1 jailbreak waters if they really want to, using redsn0w 0.9.10b6.  Here’s what you need to know:
  • This is a *tethered* 5.1 jailbreak for non-A5 devices.  You’ll need to use redsn0w to “Just Boot” your device every time it power cycles, otherwise jailbreak apps won’t work (neither will Safari).
  • If you use ultrasn0w for your carrier unlock, be sure to use a custom IPSW to get to 5.1 first!  Don’t ever restore to a stock Apple IPSW!  Use redsn0w’s “Custom IPSW” button to create a NO_BB_* version of the 5.1 IPSW and restore to that instead of the stock one.  (That option is available only to 3GS and iPhone4-GSM owners.)  ultrasn0w itself will be updated for 5.1 in the next few days (same baseband support, not 5.1’s baseband).
  • If you’re lucky enough to have an old-bootrom 3GS, this jailbreak is actually untethered (redsn0w will figure that part out automatically).
  • While we were at it, we added @pod2g’s steaks4uce exploit to support MC models of the iPod touch 2G (whose last firmware was 4.2.1).  So now redsn0w will auto-detect and jailbreak both MB and MC versions of that older device.
  • iBooks won’t work until a future update of redsn0w

If you are interested in downloading RedSn0w 0.9.10b6 you can download it from the iJailbreak Downloads Section. Additionally you can use one of the download links below:

Download RedSn0w 0.9.10b6 for Mac OS X

Download RedSn0w 0.9.10b6 for Windows

Have you jailbroken your iOS device running on iOS 5.1 yet? Tell us how you like the latest version of iOS 5.

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  • iPhone4SGuy

    Why doesnt it support 4S???

  • Louis Mayer

    Is it now too late to update from 4.2 to 5.01? Will I get forced to 5.1?

  • Ethanl

    Force update from iTunes with a downloaded ipsw

  • whussupbros

    Because this is a jailbreak for non-A5 chip devices and the 4S has an A5 chip

  • Blahz

    Oh hell Yeah!!! Thanks Dev-Team.

  • http://www.facebook.com/kursat.karacan Kürsat Karacan

    WTF is this.. It hangs by ”Transfering Control To Jailbreak” when the jailbreak is done

  • http://www.facebook.com/kursat.karacan Kürsat Karacan

    Nevermind.. its working now.

  • http://www.facebook.com/kursat.karacan Kürsat Karacan

    No.. it doesn’t work.. wtf

  • lmny83

    so the 5.01 SHSH signing window is still open?

  • Xander

    so if i have a 3gs with an old bootrom and i update to 5.1 and the use the new redsnow 0.9.10b6 the jailbreak will be  untethered ?

  • Kawaii_bitok

    does it worked?

  • Jecardo18

    tethered is a S-..H..-I..-T-..

  • Pingback: Jailbreak iOS 5.1 - iPhone 4, iPad | Unlock iOS 5.1 | Techo Latte()

  • M Sulistyanto Oetomo

    work for my 3gs but cant detect gsm network :( 
    how to fix this?

  • Null



    used one of my ipt 4g to try stock ios 5.1 with redsn0w 0.9.10b6 windows. ios 5.1 installed ok, jailbroke ok. used ifaith full blob backup for 5.0.1 and stitched to stock 5.0.1 ipsw with redns0w 0.9.10b6. pwned dfu with ireb r5, ios 5.0.1 restore of above signed ipsw successful. jailbroke with 0.9.10b6, cydia appeared momentarily then vanished. rejailbroke selecting the ipsw manually. same issue. attempted jailbreak with redsn0w 0.9.10b5c, same problem. used sn0wbreeze to create an ifaith signed ipsw for test device on 5.0.1. pwned dfu, installed sn0wbreeze signed 5.0.1 ipsw successful. upon boot, no cydia. also have attempted tethered boot via redsn0w, no cydia.

    apparently, ios 5.1 makes some baseband-style modifications that prevent the injection of the exploit or read/write fs mounting? last thing to try is using the redsn0w 0.9.10b6 jailbreak and pointing to the 5.1 ipsw on this downgraded 5.0.1 device.


  • David

    it says rest of the process takes place on your device…
    but it does’t… Why?

  • Tommy980506


  • Tommy980506

     Unfortunately yes… but once you jailbreak you can downgrade your iOS to 5.0.1 and then download an untethered Jailbreak for 5.0.1

  • Apppleman


  • jakedudebro

    I am quite new to the whole jailbreaking thing. The entire process went very smoothly, but when I try to open cydia, it will not open. What is the problem?

  • jakedudebro

    Nevermind, I had not yet completed the whole process. Everything is working fine now.

  • Nicholas_nitesh

    tks for this jailbreak i am able to open cydia and excess my tweaks and apps tks ijailbreak

  • Huynh

    can you help me..I want this..but I don’t know download where

  • Hilty

    updated to ios5.1, Jailbreak went through successfully on my iPad 1.  But Cydia comes up as a blank icon and will not activate.

    How to fix?


  • Saulnandez1997

    i have a iPhone 4 and i my carrier is sprint and ive been trying to jailbreak when i had the 5.0.1 version and it never let me it always said no fetched data what do i do and i already updated to 5.1    

  • Offtherocker2388

    you need to hit the extras button than just boot the same way you do the jailbreak but do only the boot on it and everything will work fine after that 

  • Aqdas78

    Issue:updated to ios5.1, Jailbreak went through successfully on my iPad 1.  But Cydia comes up as a blank icon and will not activate.
    Question:How to fix?

  • USER

    Will this work as an untethered jailbreak on iPod Touch 4g iOS 5.1?

  • Cailan560

    Download RedSn0w 0.9.10b6 for Windows
    Download RedSn0w 0.9.10b6 for Mac OS X

  • Cailan560

    Read it again

  • Sergeant Schultz


  • Izham

    hi there..i already done with the jailbreak and my phone is working!!…but my problem is my Iphone 3gs IOS 5.1 thethered jailbreak version didn’t detect any GSM network (my simcard)..can anybody help me on this quickly?

  • Ndarczuk

    what happened? it did not work on my computer

  • Djlipkiss

    Now, R SIM IV will unlock the baseband 4.11.08 on iPhone 4. Can some1 verify this plz.

  • Silverhammer

     you are on tethered jailbreak, what you want to do is go to redsn0w and click extras, than click the “just boot” tab and put your ipad into dfu mode, after that it should work fine!

  • sridhar obula

    plz anyone can help me…………………………i upgraded my iphone to 5.1……………but its not working…………..could not activate iphone…………like that it showing……….plz help me….wt to do now?

  • Angeloandkarina23

    it doesnt let me log in to the cydia app :”( please help now

  • Nbfrogs

    How did you get it to work on ios 5.1

  • Ritzcrkrz

    just go to redsnow and reboot the jailbreak very simple same thing happend to my ipod 4g

  • Jordanmcdnl

    if i click the orange download, is it downloading redsnow cuz it comes up as 7zip

  • Nobinshankar

    you have to reboot 

  • J4mes

    my ipod doesnt turn on and says there is an error. when i try to restore it, it says it cant restore. plzzzzz help i just got the ipod

  • mini

    Do you have to use the “Just Boot” option when restarting the phone ?  or is it just for a cold boot ?

  • RIchy

    you need to open up redsnow again and click extras, then just boot, and follow the steps

  • b3nj4m1n

    when i jailbreak my ipod v.5.1 with redsnow after going into dfu mode theres a loading bar exploiting with limerain but it take for ever . please help .

  • Coolerguy911

    same prob as this bro. Your fix worked. Thank you.

  • jewbium

    Will there be an untethered one out some time soon? m/

  • ConcernedCITIZEN

    it means that your ipod just break if i where you go to nearest IT and let him do the work….

  • Lissicheeks

    I think there is a bug or something is wrong with this jailbreak. Everything went fine after a few hours of having Cydia on my Ipod my Safari and Cydia App was not working.
    Thinking it was something I download, I removed the jailbreak and jailbroke it again, not downloading anything waited a few hours and BAM! My Cydia and Safari isn’t working. It’s opening but then closing after a few seconds.

  • Jerin Fdo

    restart your device.then,plug your iphone into ur pc and launch the redno0w app. and click just boot.you are done….

  • http://www.facebook.com/thijs.bedeaux Thijs Bedeaux

     how did you removed the jailbreak?

  • Aaronl871

    are you booting tethered?

  • 5164990553 help

    i follow the directions exactly, i do everything correct…. and then when it says “waiting to reboot”……. my ipod turns on and then it acts as if nothing just happened…. help?

  • Aaronl871

    you need to boot tethered! Email if you need more help. Idevi@idevi.net

  • TheAaronl871

    That’s not true. What error are you getting exactly?

  • Laur_craw_22

    my WHOLE iphone shut off and wont turn back on… help? please?

  • Thumb123

    yu have to go back and rebot the jailbreak again, go to extras after yu open red snow & then press just boot x then yu things should be working…,.

  • Thumb123

    all you have to do is restore it nothing hard/….

  • Dwtkshp5

    hey, i downloaded the Redsnow,
    but when i started the program it said….
     “Incomplete iTunes libraries
    Certain operations (like the A5 jailbreak) are disabled
    due to incomplete iTunes libraries. Please be sure
    the latest iTunes is installed.

    Failed to load required functions(s):

    please suggest me… what to do ????
    and it’s an iPad 2 that i need to jailbreak !!!

  • Johnpaulmacdonogh

    i’m just struggling to download redsnow can some send me a link please.

  • Ass

    It says to me when I try opening the DAMN FILE!!! that it’s f*cking corrupted wtf

  • vishal

    am not able to download redsnow :(

  • Rufi_sahin

    when u think iphone 4s
    jailbreak  5.1 will come out?
    when ever comes out please email me guys thanks

  • Stefan Sarateanu

    I downloaded Redsn0w (redsn0w_win_0.9.10b8b) and the ipsw (iPod4,1_5.1_9B176_Restore.ipsw). I jailbreaked my Ipod Touch 4g with them and all seemed to go normal. When it finished, I look at my apps : Cydia was white. I just shut down my Ipod Touch 4g and went in extras; Just Boot. By the 10th time i’ve rebooted my Ipod with redsn0w, I still get the white Cydia icon that fails at launch (Safari fails at launch too now). What CAN i do ?!?!?!?

  • dark_messiah

    ive got a stupid doubt >> 

    can i jailbreak ios 4.3.5 with redsn0w 0.9.10 b6 
    PLZ Cud some1 answer me coz i am new to the jailbreaking thingy

  • http://Michaelschnier.tumblr.com Michael Schnier

    We have a guide for that in our jailbreak section under How To Jailbreak. The links are in a dropdown menu just below the iJailbreak logo.

  • Seebee2012

     You have to turn Ipad off and boot tethered using redns0w, same happened to me with Iphone 3GS

  • Rapture2

    Incomplete iTunes libraries 
    Certain operations (like the A5 jailbreak) are disabled 
    due to incomplete iTunes libraries. Please be sure
    the latest iTunes is installed. ………..WTF….:)

  • Seebee2012

    Anyone know how I can find out when the 5.1 unlock/jailbreak will be untethered? PLEASE EMAIL ANSWERS TO: seebee2012@hotmail.co.uk, as I have no pc to come onto this forum (using a friends) Thanks

  • Sumon_lus

    hi can i jailbreak my iphone 4 ios 5.1.1

    im worried help me plz

  • VcyChen

    why not A5 iPad2 JB?

  • Sus12241

    i have iphone 4 and cydia also but my device is 4.21 verson i would like to upgrade 5.1.1 verson and my phone is not unlock i have to use geve sim also to run my iphone….

  • Blessed

    I mistakenly upgraded to the new version of IOS 5.1.1, now it shows invalid sim and i cant sim to activate it. it original carrier is AT&T. Can i downgrade it back please any one help

  • Degr

    hi i cant download 

  • Haylee

    Okay I have a iPhone 3g (AT&T) that I just got today, My current carrier is T-Mobile and I like it and im not switching(: So I heard you could jailbreak? And so I looked it up on youtube and it says download Redst0w and I cant find the right site to do this? and I want to switch the iphone to T-mobile? PLEASE PLEASE HELP ME!!!

  • anoymus

    When I try to open jailbreak, it opens, but comes up with the message “Incomplete iTunes Libraries. Certain operations (like the A5 jailbreak) are disabled due to incomplete iTunes libraries. Please make sure the latest iTunes is installed.”
    Now I’ve still tried to continue the process. Everything works but when I try to enter DFU mode, the iPod just turns off and the computer stays the same. What should I do?
    My iTunes is up to date AAas

  • Fulham4u16

    hey i got an iphone 3gs that i on the latest update but i want to downgrade it how do i do that

  • http://www.facebook.com/feryop Fernando Ariel Yopolo

    Hi. I just have a beginner question. I own an iPhone 3G whose baseband is 05.15.01. I have never jailbroken it in the past and I bought it myself through my local carrier 5 years ago (Movistar Argentina). Current iOS is 4.2.1 and as far as I’m aware of, Apple (or iTunes) doesn’t allow me to upgrade further.

    Question is. As you people have found a way to hack this mobile, is there a chance to install the latest iOS on my device?

    Thank you and sorry for the dumb question.