iOS 5.1 has finally dropped, and for the most part we totally recommend staying away from the update if you care anything about your jailbreak, as does the iPhone Dev Team.

That being said, for those with older A4 devices, it is possible to enjoy a tethered jailbreak on iOS 5.1 and still downgrade back to previous firmwares if you have your SHSH blobs for those firmwares.

With A5 devices like the iPad 2, and the iPhone 4S, it is impossible at the moment to downgrade to any older iOS 5.x firmware, even if you have your SHSH blobs saved. So don’t upgrade to 5.1, especially if you care about your iPhone 4S jailbreak.

If you have an iPhone 4, iPod touch, iPhone 3GS, or original iPad, then check inside for a tutorial on how to perform a tethered jailbreak on iOS 5.1…

Step 1: Download RedSn0w 0.9.10b6 from our downloads page and run it.

Step 2: Place your iPhone 4, or iPod touch, etc. into DFU mode.

Step 3: Click jailbreak on RedSnow, and it will go through the process of finding the necessary firmware. It will then ask you to install Cydia, make sure that is selected and click next.

Step 4: You should see a lot of scrolling text on your device, and eventually you will be back to your Home screen. You will see a Cydia icon but it will be white. That is because you have to perform a tethered boot.

Step 5: Place your iPhone 4, or iPod touch, etc. back into DFU mode.

Step 6: Click back on redSn0w and select Just boot. This will perform a tethered boot, and once your device returns to its Home screen, you will see a usable Cydia app icon. Open Cydia, and enjoy your jailbreak.

Note: Each time you reboot your device, you will have to perform steps 5 and 6 again to perform a tethered boot.

Again, we can’t stress enough how important it is to stay away from iOS 5.1 if you care at all about your iPhone 4S jailbreak. iPad 2 owners will also be impacted, so don’t update either, though, you can still downgrade to older 4.x firmware if you have your blobs for iOS 4.x.

Are you going to jailbreak your iPhone 4, iPod touch (4th generation), etc?

  • Hello Guys….i suddenly had a problem with my iphone 4 ios 5.0.1 untethered..the problem is when i woke up today my pfone was on general profile and i didnt hear the sound when i slide to unlock my phone..then the msg doesnt make any sound when the sms came nor does the keyboard click sound works..when someone calls then the ringtone sound is normal i can hear it but other than that nothing works…..plzz jeff or other guys at iDB..plzzz help out here..????????/

    • may be you woke at a wrong time. that is why,haha just kidding.^^
      i suggest try to do to a clean restore. download the 5.0.1 ipsw

    • Do a hard boot.. If unlocked iPhone 4 do a custom restore

    • Or check packages you may have downloaded

    • Jex

      did you checked your sound button.. your phone might be in silent mode

      • My phone is not in a silent mode I checked the switch..when I plug my ear phones all sounds work properly

      • Jex

        Same problem happened with my friend having iPhone 4s.. he dropped his phone in water and wad unable to hear any sound… best way to dry.. He played games and phone was heated and sound was back.. maybe you should check what happened last night… moisture maybe the reason….

    • Same thing happened to me this week. Get a can of compressed air and give the earphone socket a good blast.

      • What??

      • There is a contact in the earphone socket and it needs a clean, so get a can of compressed air. It does work. You can try a q tip dabbed in a bit of alcohol too but compressed air is better.

    • u just need clean restore through iTunes… i had same problem, but it turned out just fine.

    • you have to sleep again and wake up as usually you do. joke

      press home button and power button same time untill your phone turns off , than turn it on again in a normal way , enjoy

    • you foul just restore it by opening itunes and hold shift the click restore and select your ipsw

  • If i have an iPhone 3GS old bootroom, i will get an untether jailbreak right?

  • Plug your headphones in than reboot and then unplug them that Shld fix!

  • Hi everyone. I got a iPod touch 4g running 5.0.1 with an untethered jailbreak. Is there a way to upgrade to 5.1 and run this tethered jailbreak without me losing any of the tweaks I have?

    • Anonymous

      PKGBackup from Cydia, but in all honesty, I find that starting afresh really lets me know what tweaks I need and what I don’t – I remember the ones I really use.

  • is there any side effects/down sides to jailbreaking apart from warrenty?

    • Nope thats just a scare tactic to get people to not jailbreak. If you have to do a warranty swap, just restore your iDevice to factory condition and you wont have any problems. I have done it several times with multiple different devices.

    • Jex

      No… if you do as explained by Jeff

  • does 5.1 fix battery life issues?!?!?!1

    • yes

    • John Nathan Madrigal

      Yeah it sure does

    • John Nathan Madrigal

      Yeah it sure does

    • I am on 5.0.1 jailbroken with the 4S and my battery life is fine.

    • I am on 5.0.1 jailbroken with the 4S and my battery life is fine.

    • No it doesn’t… My wife says on her iPhone 4 it does.. My iPhone 4S.. In 30 min from 100% it went down to 83.. And still dropping as I type

      • unlock your phone and double click the home button. when apps appear at the bottom of the screen, hold one down until the red negative sign appears in the corner of each app. then tap each red negative sign on all the apps and it will save battery and charge faster

  • wow guys!! its not even 24 hours!!
    Grt Job..:)

  • wow guys!! its not even 24 hours!!
    Grt Job..:)

    • All A4 devices will always have a tethered jailbreak as it is a hardware jailbreak, no matter apples future IOS versions

  • Can us A5 devices at lease get a tether this time..So we dont have to wait long for the untethered.

    • Anonymous

      51 can not be JB ON 4S

  • Craig Riggio

    Great Job on already finding a tethered jailbreak for 5.1. Is there a time frame on when an untethered jailbreak for IP4 will debut?

    • Jex

      No official time…

  • i am going to buy the ipad 3/hd so can i jailbreak that

    • Jex

      To early to say…

  • Jex

    redsn0w 0.9.9b10b6 includes a new build of Cydia 1.1.5

  • Jex

    redsn0w 0.9.9b10b6 includes a new build of Cydia 1.1.5

  • ,, so itz start again !! ok,, but just a question: what about the gevey sim unlocking ? is it working as well ?

    • waiting for feedbacks too.^^ though Musclenerd said you can preserve your bb though

    • Jex

      yes if you preserver your BB… by preparing.. custom IPSW….

  • Odd. Normally you guys will add “tethered” or “untethered” in the title…

  • Does ultrasn0w work for 5.1? And I have an iPhone 3GS

  • iOS 5.1 has been Jailbroken Untethered!

    Find the video on the Channel: krishnasagarpm

  • Никита Осенников

    это привязанный или уже отвязанный джейл?

  • Anonymous

    ive been trying to upgrade my iPhone 4 iOS 5.0 to iOS5.0.1 via TinyUmbrella with no success. keep getting iTunes Error 11. i want to get the untethered jailbreak but cant even get the damn 5.0.1 ipsw to install on the device. any help is appreciated.

    • You have to use iReb, download iReb before restoring to your custom 5.0.1. You can download iReb just by searching it up on google, make sure you’re using the lastest one. Good luck (:

  • Rafael Delgado

    can you make a video on how to downgrade from 5.1 to 5.0.1

  • Let’s wait and find out

  • So I’ve updated my iPhone 4S to iOS 5.1. Are you saying I can never expect to jailbreak or downgrade my firmware ever again?

    • Anonymous


    • Not never.. Only until the next release is made, then chances are the untethered jailbreak will be around.. But I’m hoping for sooner, however tethered isn’t as much a pain as some people make it out to be, if and when you have to reboot your device just think of it as owning an old 3G.. They take about that long to boot up as well lol.

  • Cool will try it this weekend on my A4 iPad and IPod touch. Side question, I have a iPod Nano 6th gen and it has a feature called audio crossfade which I like. My question is, is there a tweak or method or something that I can use to install this same feature on my jailbroken iPhone 4S ? Because I really like it gives it a good mix and I have more music on my iPhone ? Please hel, thanks in advance

  • Pardon my stupidity, but can I Jaibreak my 3GS untethered on 5.1? Not sure if it’s old or new bootrom, but I seem to remember it being a new bootrom… I’ve heard it doesn’t matter, but I don’t want to get screwed with a tethered.

    • Anonymous

      yes it does matter

  • iBooks is broken on 5.1

  • Can i perserve my baseband using the function in redsn0w and unlock my ipad baseband using ultrasn0w? is ultrasn0w and ios 5.1 compatible?

    • Yes, you can preserve your BB using redsn0w, make sure it’s the lastest one. And ultrasn0w isn’t updated for 5.1. Should get updated in the following weeks, for now, just wait (:

      • So basically if I rely on an ultrasnow unlock, I shouldn’t update to 5.1 yet

  • Anonymous

    Note: This version of Redsn0w includes the iPhone 4S and iPad 2 jailbreak.

  • Nice but tell me jeff when it will BE UNTETHERED!!!!!!

  • hi i have an ipod touch 4g and i followed the instructions religiously, but i still have a white cydia app, can anyone please help, im new to jailbreaking

  • My Cydia icon continues to stay white even though I put it in DFU mode then did the last step. Help?

    • I have the iPod touch 4g

      • I have the same problem, same ipod, if you find a fix please tell me!!!

      • Anyone have issues with white cydia icon? You need to provide your iPhone with a tethered boot. Steps are outlined above. and in a previous recent post I explained how to exactly start your boot it’s better to put your phone into this mode rather that follow redsn0w walk thru. Please make sure you have restored your device with a custom ipsw of 5.1 through most recent iTunes, and not updating your software to 5.1. I have read it won’t work (reason I’m unsure of exactly)

  • How long does the “Waiting for reboot” screen stay on my computer, i have followed the instructions to the tee and my ipod is now back on with USB cord in it what do i do?

  • 1. If i jailbreak and if my phone does power off when i boot it again will it have all my jailbroken apps and tweaks on there or will i have to re download everything

    2. when an untethered jailbreak comes out will i have to re-jailbreak for untethered and lose everything

    • 1. When your tethered you just need your computer to “boot” the device such as a boot disk for a computer. You don’t loose anything on your device, at least I don’t, and when it says the rest of the process happens on your device you can go ahead and close redsn0w and unhook your device as it will finish on its own.

      2. I can’t say for sure as this is the first iOS that I’m running tethered and it’s only because I was sure I had an old bootrom 3GS. However my understanding is that the new iOS generates a generic ticket each time it is restarted or turned off which is why u connect to the computer (to override that) So in order to release a patch to this I would assume you would need to re-jailbreak it which I wouldn’t mind. But there’s no real hassle of tethered.. Do your updates and tweaks at home, in case it requires a restart. And if you keep an eye on the battery and not the pr0n site you will know when to charge your phone 🙂 respringing your device does NOT require a tethered boot. Hope this helps you and anyone else holding off on ios5.1 It’s the fastest iOS IMO.

  • Hi, i have an Iphone 4 with ios 5.1. I’ve decided to jailbreak it but i’m a bit lost. I had to search every term to understand what i was reading, anyway… Is it possible to downgrade to 5.0.1 so i can instal an untethered jailbreak?

    I don’t have any shsh block saved since i didn’t knew what it was 5 minutes ago. Thanks for your help.

  • oups shsh blob, not block. sorry.

  • I’ve jailbroken numerous times in the past, but after having to update this time, I can’t seem to do it. I have a Verizon (that shouldn’t matter, right?) iPhone running 5.1 (9B176) and use Redsn0w on my Mac. It begins the process but when it gets to point where Redsn0w says ‘waiting for reboot’, my phone just reboots just like it was before DFU mode. No white cydia icon or anything. Can anyone help me out? Thanks a ton in advance.

    • Did you update iOS 5.1 with iTunes? Or did you get a custom ipsw? I have heard it will only work by downloading the 5.1 ipsw for your correct device. Just double check your device version you downloaded of the custom ipsw. If you upgraded through iTunes to 5.1 I’m not sure what exactly your options are, you have 5.1 so it should jailbreak just fine tethered with redsnOw… Only prob I could see is that when you updated to 5.1 you clicked update through iTunes instead of restoring a custom ipsw of 5.1

      • That’s my problem I suppose. I did it through iTunes initially. I just went back and tried to install a custom ipsw but iTunes says it’s not compatible.

      • Search a YouTube video and go with a popular one for jailbreak 5.1 redsnOw and go with one with a lot of likes and only a few dislikes. In that video more info they should have a link to get the custom 5.1 ipsw for your iPhone. Are you doing this to a 3GS? If so I can email you the file or the link just message me on Facebook I’m the one with the dog pic. A step I took for mine when I bought my 3GS used, was it was in recovery mode so I had to jailbreak the old iOS first to get iTunes to recognize it then I had to restore as a new phone and after all that I did a restore from custom ipsw 5.1 (the button right under update in iTunes) I think you hold shift or ctrl when you click it to add your custom ipsw. If you can’t find the right link or me on Facebook reply to this message with your iPhone version and the size (for example 3GS 32GB is mine) and also include your redsn0w version and just to be sure update iTunes just in case you never know.. But general rule of thumb for jailbreaking is only use custom ipsw. But you don’t know that until you make the mistake

      • Get your custom ipsw from felixbruns you can find the website ez. Make sure to restore from that.. You have what model of iPhone?

      • Just download the custom IPSW from felixbruns and restored using it. Redsn0w did the same thing. Did the limera1n thing, first stage, second stage, then got stuck on waiting for reboot and the phone just rebooted normally. I have a Verizon iPhone 4. Thanks a lot for the help.

      • Nevermind. Figured it out. Had to specify the firmware in Redsnow for some reason. Thanks again.

      • Congrats enjoy the jailbreak.


      • Anonymous

        How did you fix it?

  • My 4th and 5th digit in my serial number on my 3GS is 2 and 2 followed by a 0 as the 6th digit. From my understanding that’s old bootrom correct? Redsn0w detected it as new bootrom. Now is this because when I jailbreaked 5.1 I checked the box to install iPad baseband… Should that maybe have been left unchecked?

  • elliott parler

    Ok I need help I have a unlock iPhone 3GS and I have a tmobile sim in it and it’s running on iOS 5.0 I love the phone but I can’t send or get pic. Mail I tried everything. I even tried YouTube but I wasn’t able to find anything plz help!!!!!!!

  • bullshit…i can’t fucking unlock baseband 4.12.01

  • alejandro ochoa

    can i jailbreak my iphone 4s version 5.1(9B179)??? 🙂

  • alejandro ochoa

    hi>i just want to know if i can jailbreak my 4s version 5.1(9B179).thnx bro

  • Marcel Marchand

    To get to “Just Boot” Option Click on Extras button. Hoping to help anyone who had trouble fining just boot button. lol

  • Guys I need help. My iPhone4 runs on iOS 5.1, and did a tethered jailbreak on it. When it passed the pineapple and started to re-boot it took way too long. I tried to jailbreak it again and it’s still taking too long to re-boot. What should I do?

    • beauty beauty

      might be its because of more apps in your device try to remove big apps and try once again

  • Guys I need help. My iPhone4 runs on iOS 5.1, and did a tethered jailbreak on it. When it passed the pineapple and started to re-boot it took way too long. I tried to jailbreak it again and it’s still taking too long to re-boot. What should I do?

  • michael crown

    I just lost my safari,facetime,settings,camera, photos and other apps!!!!!!!! how do i get them back!!???

    • beauty beauty

      i hope u have settings icon, check in settings whether those apps are in restrictions mode

  • michael crown

    i just lost most of my major apps like camera,safari,settings,photos and more!!!! how do i get them back!!!??

  • Anonymous

    hey guyss tell me how to put iphone in dfu mode..

  • hello, I have an Iphone 4s I would unlock it to use the SIM Card of a phone company in Haiti, what should I do. thank you

  • Alex Kim

    how do you run the file?

  • Anonymous

    How to untether iphone 4 ios 5.1

  • Amandeep Malli

    untethered version of 5.1? when its going to release???