Following the release of iOS 4.3.5 this morning, we issued our usual warning about staying away from the latest firmware so that you don’t lose your jailbreak or unlock.

This warning is still in effect for those who don’t want a tethered jailbreak. For the rest of you who don’t mind plugging your iDevice in your computer every time you have to reboot, the word on the street is that RedSn0w can jailbreak iOS 4.3.5

This will work for all devices that support iOS 4.3.5, except for the iPad 2.

In order to jailbreak iOS 4.3.5 using RedSn0w, you will have to update to 4.3.5 first, then point RedSn0w to 4.3.4.

Not sure how to do that? Then check our our ultimate RedSn0w guide. Make sure you are on 4.3.5, then in step 6 of the tutorial point RedSn0w to 4.3.4. The remaining steps are identical.

Keep in mind this is a tethered jailbreak. You will need to plug your iDevice in your computer, and launch RedSn0w every single time you’ll want to reboot your iPhone, iPad, or iPod.

Now for those of you who try this, please make sure to leave a comment below and tell us about your experience.


  • Katie

    Not everyone is a code writter,
    Or have excellent understanding of terminology .
    I’m jailbroken on4.3.3 with an iphone4.
    I’ve accumulated 9.7 gb of “other data”
    Tried restores . No luck.
    Does reboot refer to powering iPhone on and off, or is respringing my springboard,
    Such as when I install a Cydia app also considered a reboot .
    If it’s just on and off,
    I may update 4.3.4 or 4.3.5 and live with a tethered jailbreak .
    And hope a new iPhone 5 can be jailbroken with an untethered jailbreak.
    Don’t really ever power iPhone off much.

    • Reboot means turn off and back on.

      • Steve

        If you happen to know, will this jailbreak Verizon’s 4.2.9 or 4.2.10? Thanks a lot for all the articles you guys write, this is my favorite site for iPhone stuff. Keep up the good work!

    • Phosphorus

      If you have iFile you can delete the contents in displayed as other data. They’re just backups from failed itunes syncs.

      /Library/Application Support/MobileSync/Backup
      im not sure which /library/ this is but you’ll find it somehow

  • Katie

    Thank you sebastien!

  • Muse

    Yeah Sebastian what is this other data? How can we get rid of it? I am no coder but I know how to mess around. Any tips or tricks?

  • Kwamayze

    You have to use Redsn0w to power off the phone anytime it is switched off

  • ilhan

    the best way to get rid of “other data” is to restore your iPhone while it is in DFU mode et the beginning. this way the restore proccess will wipe out your iDevice’s entire memory like a hard format and then install the iOS.

    • ilhan

      ahahahahahah “et” the beginning… ahahahaha

    • Muse

      this one hurts my head to even think about…too much work.

  • Muse

    Nice yeah I do mess with ifile a lot! Great I will look for those files…awesome!!! Thanks!

    • Dane

      Do you have a template for these articles. It’s always

      Apple releases update x.x.x

      Jailbreakers stay away from x.x.x

      Redsn0w can jb x.x.x

      • Binary-Stalker

        They do it in order of release. If you don’t like it, leave.

  • Steve

    Will this work on 4.2.9? thanks..

  • Bada

    Would The jailbreak be untethered for old boot rom 3gs

  • Mickey

    what is the best FREE program to unlock my iphone 4?

    • monkers

      They are all free, unless you go to one of these “unlock for £££'” sites where all they do is charge you for the software you can get free anyway. It’s all about what version of IOS you are running atm, not “What’s best for IPhone 4” Look through the tutorials on this site and when Apple tell you there is an update available don’t just install it, check if it affects your jailbreak.HTH

      • Mickey

        Thanks for the help.

  • can jb, but limited 🙁

  • hedy

    I need your help. when i would jailbreak 4.3.5 there s erro from redsnow i download it firmward 4.3.5 and red snow 3 and latest versionas well

    • Heebie Jeebie

      Point Redsn0w at iOS 4.3.4 software after uve used iTunes to update ur device to 4.3.5. Redsn0w will not recognize the 4.3.5 software. Hope this work for u!

  • Bharat

    iOS 4.3.5 suppor redsnow model
    Plz any one help me

  • i need a help.. i updated to beta 1….i can t move forward to new beta versions ,nor can go back to shows error 17 in itunes during restoring the only thing i can restore is 5.0beta 1 ..mine is iphone4 factory unlocked

  • marcos

    eu preciso de uma ajuda!!! o emeu iphone 4.3.5 e sempre quando eu vou fazer o jailbreak no redsnow aparece unable recognize specified IPSW. como eu resolvo isto?

  • Abel

    I keep trying to jb my iphone with redsnow and pointing at at 4.3.4 but as soon as the little redsnow windo says its gonna jb my phone turns on like it normally does not allowing it to jb

  • Keyur

    I did as instructed, redsnow recognizes the 4.3.4. file, and i see the icon for cydia, but every time i open the app, it opens and closes.

    I tried to point redsnow to 4.3.5 and it doesn’t recognize the file.

    So i have a cydia icon without pic/its just blank icon and it doesn’t open.

    Mind you this phone was udated to 4.3.5 prior to jb.
    I don’t know if that is the reason why it’s not working?

    • i0nic

      1.Connect it to redsnow.
      2.Go into ”Extras” then ”just boot tethered now”.
      3.Put your Idevice (except iPad 2) into DFU mode and Voila!

  • allen ban

    guys you can to jailbreak your iPhone with 4.3.5 with redsn0w_win_0.9.8b4 by using iPhone3,1_4.3.4_8K2 ipsw the first time you will see cydia icon white and not working but you have to repeat the same way to but not install cydia but chose ” just boot tethered right now ” and you will get cydia working very good i did it and its working cool.

  • Keyur

    allen ban says: August 1, 2011 at 4:29 pm
    guys you can to jailbre ak your iPhone with 4.3.5 with redsn0w_win_0.9.8b4 by using iPhone3,1_4.3.4_8K2 ipsw the first time you will see cydia icon white and not working but you have to repeat the same way to but not install cydia but chose ” just boot tethered right now ” and you will get cydia working very good i did it and its working cool

    Thank you for your reply. I did that trick and it worked. So people follow instructions to the key. And you have to repeat the steps before the cydia works. Also the second time the icon is still white only when you access cydia it downloads does the icon change.

  • Glen

    I don’t get it. I download the files recommended here, but none of them are the needed IPSW files. Where are the actual IPSW files?

  • Glen

    Sebastian, thank you, but still the same problem. I downloaded iphone2, When I unzip it, I get DMG, plist, dfu, production files. But no IPSW files, which, I believe, is what Redsn0w is looking for. Where are the needed IPSW files? Or am I missing something?

    • Keyur


      The redsnow when opened will point too files which can be changed to the folder in which you downloaded the 4.3.4 file and the 4.3.5 file as instructed.

  • justinnarramore

    how do you use redsnow (point it to)

  • justinnarramore

    how do you change what redsnow program is pointing to

  • Glen

    Keyur, Yes, but the files still are NOT IPSW files, which Redsn0w is looking for. When I point it to the folder, it does not recognize any of the files.

    • Sergy

      Save it as .ipsw

  • How do I back up Cydia apps

  • nomakhammerstone

    i have iphone 3gs 4.3.5, i did everything twice and it keeps getting stuck at the apple logo afterward. is it normal to take so long ? or do i have to do something else ?

  • Ryan

    I have done everything as requested here but have a rather serious problem. When I run Cydia and install any app the system kind freezes. I have done this tutorial several times but the issues persists. Install file from Cydia, when I click on settings it just displays the word settings and that’s it. After a while the phone freezes and restarts. Anyone can help?

  • nicksimaj

    Ok so here is my little query/problem if anybody could help pls.
    Now i read on other site that people who rely on carrier unlock should stay away from this.
    What does it mean i mean only those who requires ultrsnow should stay away or also those who may wanna try gevey sim since they locked there phone on there own idiotic account.:)

  • Andri

    Urm i need help. Is there any software or program to get my ipod touch with broken power button to get into dfu mode? Any help would be much appreciated. Thanks!

    • Andri

      its ipod touch 4G btw

      • Katt

        Just take your phone to the genius desk and they will give you a new one…

  • Beth

    I’ve never jailbroken my phone myself. My boyfriend did it to my last iPhone for me. I can’t figure this out. I have 4.3.5. I tried to use too but it says my device isn’t compatible. I know you have to point it to 4.3.4. but I can’t get it. Ugh…PLEASE HELP.

  • dinuj

    will it work if i put my device(iphone 3gs) off from the begining of the proccess(step1)????

  • Sergy

    Glen when u download the restore save it as .ipsw that will

  • Sergy

    Glen when u download the restore save it as .ipsw that will Work

  • Naveen raj

    is there any option of jail breaking 4.3.5 with redsnow version that does not need thethering, i mean the un thetered version where i can reboot or switch off my iphone????? and why cant i do a jailbreak with 4.3.5 instead of 4.3.4

    • Philbo

      Read . . . and learn. It’s all there – no need to repeat ad infinitum what is already stated.

  • ron mclaine

    After jailbreaking with redsn0w on 4.3.5, my existing app can run well but internet/wifi not working, and no longer able to install new app.. anyone experiencing same issues??

  • Sabina

    I did the jb 4.3.5 3gs, did everything right, at the end showed DONE but it didnt work! my phone is still lock!

    ANY ideas??

  • Rakesh

    I did the jb for my iphone 3gs 4.3.5 and baseband 5.16.02. But the Cydia icon is white/blank.
    No color or logo on the Cydia….
    Can anyone help why this is happened? Also its not recognizing my new SIM card/Network

  • Chris

    Thank you so so so much. I didnt think there was a 4.3.5 jailbreak but you svaed me from boredom on a flight to hawaii

  • António

    Before did jailbreak, on 4.3.5, and install installous, the icon of installous dont appears.To solve the problem, turn off the iPhone, and it blocks. I have to restore the system to return to work. How to solve this problem?

  • Weston

    How do you change the settings of a jailbroken ipod?

  • devon

    this video helped me none it does not give enough information where do you look up redsnow

  • Orlando

    What if it does not work?

  • Hedy

    Hi for every one. I need help about jail break. I did jail break it’s fine but when I restated will not on again it’s be stuck my phone I need help

  • Robert

    Hy. I’ved just jailbreak my iphone4 4.3.5 with redsnow but i have a problem with skype . Does not work . Can help me please ?

  • Wei Leong

    I got a new iphone from apple store. I cannot use it because I did not get a plan from them. If I want to use my iphone without using it as a calling or texting phone, should I jailbreak or unlock it?

  • Mimie

    Hi. I want a reconfirmation. Is jailbreaking ios 4.3.5 on ipad2 still unavailable? Because i saw an entry where ios5 can be jailbreak.

  • naizer

    its doesnt work nmy friend! plse give me a guide

  • Hassan Yassine

    I want jailbreak 4.3.5