The latest build of iOS has already been jailbroken! Thanks to the work of DjayB6 on the 4.3.1 jailbreak bundle and Universal Ramdisk Fixer, Apple’s newest version of iOS has already got the jailbreak treatment.

PwnageTool 4.2 can be used to perform a tethered jailbreak for 4.3.1. This jailbreak method is not for the faint of heart, and is by no means considered a “stable” release for jailbreakers.

You will need several tools to perform a successful jailbreak of 4.3.1, and we have yet to hear about a stable untethered solution…

This particular jailbreak with PwnageTool will require, among other things, a Universal Ramdisk Fixer and tetheredboot utility. There is also no unlock for this tethered jailbreak of iOS 4.3.1. Performing this jailbreak will not upgrade your baseband.

Redmond Pie has put together a very thorough tutorial on how to perform this PwnageTool jailbreak for 4.3.1. They have all of the requirements and details of the jailbreak listed there.

We recommend holding off on this 4.3.1 jailbreak until an untethered and more stable solution is available. Jailbreak dev, chpwn, has said on his twitter that the official 4.3.1 jailbreaks will be released “as soon as possible.”

In the meantime, let us know if you try this tethered method with PwnageTool for 4.3.1. Make sure to backup your SHSH blobs before you mess around.

  • 7h0mAs

    Might try it dont have 4.3.1 yet

  • 7h0mAs

    That was fast too

  • George W. Bush

    Dose it support they iPad 2?

  • Jge162

    The instructions are horrible! I followed them to the “T” and got Cydia. The tethered tools to boot tethered don’t work at all. I could get Cydia to open for nothing. Please stay away from. I’m now back on iOS 4.2.1. I have a iphone 4

    • Dan

      How do you go back?

      • borojim

        download redsn0w and the 4.2.1 firmware follow the instructions supplied with the redsn0w software

    • Ashmad85

      Ye how did you go back to 4.2.1

  • Adam

    Is it however untethered for 3GS old bootrom?

  • EJ

    How can I go from 4.3 to 4.2.1?

  • Jge162

    Easily if you have shsh blobs with Cydia. Launch tinyumbrella and start TSS server.

  • EJ

    Well, I did an update by accident and I don’t have Cydia anymore. Is there any other way?

  • Jge162

    There might be one more chance for still. Download tiny umbrella and see if Curia has any of your blobs. If Curia does it will show up on tiny umbrella. Check that then let me know.

  • Jge162

    Not Curia (cydia)

    • Deep

      Hi jde163@ i m on 4.3 on iphone 4… I hav d shsh blobs too.. However weneva i want to downgrade der is a error in itunes 1013… Den d iphone goes to dfu mode again.. Can u help plss?? Appreciate if u can!! 🙂

      • ThureinXxX

        to fix error 1013, you need to do following
        Step 1. Start –> Programs –> Accessories
        Step 2. Run Notepad or WordPad
        Step 3. Click “Open..” from File menu.
        Step 4. Browse to Windows/System32/drivers/etc
        Step 5. In “files of type:” select all documents
        Step 6. Open “hosts”
        Step 7. Delete all line that has “gs.apple.com” or something like that
        Step 8. Hit Save
        Step 9. Restore your device…

  • EJ

    I’m on my phone right now, I can’t. I’ll get back to you tomorrow.

  • ThureinXxX

    every time i try this process i got “download latest ramdisk fixer” message. after while pwnage tool quit itself… and there is no 4.3.1 custom file on my desktop… i’ve ramdisk fixer 1.7.2 installed… i tried many times(i think over 100 times)… i m using macbook pro with 10.6.6, and itunes 10.2.1… hew…

  • ThureinXxX

    to fix error 1013, you need to do following
    Step 1. Start –> Programs –> Accessories
    Step 2. Run Notepad or WordPad
    Step 3. Click “Open..” from File menu.
    Step 4. Browse to Windows/System32/drivers/etc
    Step 5. In “files of type:” select all documents
    Step 6. Open “hosts”
    Step 7. Delete all line that has “gs.apple.com” or something like that
    Step 8. Hit Save
    Step 9. Restore your device…

  • WiseOne

    Just did this on a IP4 on 4.0.1 and on a 3GS on 4.2.1 and both worked great! THANKS!

  • Dsd

    how can someone jailbreak a ipot touch 4.3.1 without mac?????

  • Jge162

    Deep you must ignore the 1013 error code and just run green poison to exit recovery
    Mode and dfu mode. What iOS are u downgrading to? 4.2.1? If so green poison will help u get out of 1013 error with ease!

  • Jge162

    Do not attempt jailbreak with pwange tool it will just fail. Don’t waste your time I’ve tried everything and it doesn’t work. Its not ready for piblic use yet. Please avoid!!

  • Chico

    Does it work with iPad 2?

  • jge162

    Ipad currently is not jailbreakeable

  • VENEM MSK

    I THINK I MIGHT HAVE ACCIDENTALLY BRICKED MY 3GS, IT HAS BEEN J/B AND UNLOCKED W/ REDSNOW UNTETHERED, WHICH I HAD TO USE THE 06.15.00 BB ,THEN I GOT THE NEW GREEN POISON AND J/B IT WITH THAT AND ALL WENT PERFECT UNTIL MY PHONE STARTED TO SAY THERE WAS NO SIM CARD AND NO SERVICE ,SOMETIMES , THEN IT BEGAN GETTING WORSE AND WORSE SAYING THE SAME THING ALL THE TIME . SO I FIGURED IT WAS THE IPHONE AND FIGURED I COULD RESET IT AND HOPEFULLY IT WOULD WORK FINE AGAIN, AFTER I RESET IT ON THE ACTUAL PHONE , IT WANTED ME TO UPGRADE TO 4.3 ON ITUNES OR ELSE I COULDNT USE IT . SO I DID AND NOW I CANT EVEN GET IT TO CHARGE , IT KEEPS GOING TO THE APPLE LOGO AND THEN THE GREENPOISON SKULL APPLE LOGO .. I CAN START TO GET IT INTO DFU MODE AND THE INSTALL THE G.P. AND IT WILL DO IT UNTIL IT HAS THE RUNNING PINEAPPLE THAT SAYS ACTIVATING AND IT JUST FREEZES UP… THEN SINCE IT WONT EVEN CHARGE , IT JUST GOES TO THE BATTERY LIGHTNING BOLT… AM I JUST ASSED OUT OF MY IPHONE NOW OR DOES SOMEONE KNOW IF I MIGHT BE ABLE TO FIX THIS??? PLEASE LET ME KNOW … I DO HAVE MY PHONE BACKED UP ON ITUNES AND I BELIEVE I HAVE SOME SHSH BLOBS FROM PREVIOUSLY,BUT IM NOT REALLY TOO SURE … I REALLY NEED SOME HELP IF POSSIBLE…. IF ANY ONE KNOWS HOW TO HELP ME I WOULD BE EVER SO GRATEFUL… THANX

    • black

      Hi!!
      I had exactly that problem last week. its not a big problem you have to fix the host file. or the esyiest way just get another computer and it will start up. use a clean computer.

  • VENEM MSK

    I MEANT *TETHERED REDSNOW

  • Phil

    I just tried this on my iPad and it does not work.

  • Hamood

    is there already unlock 4.2.1? Please help

  • Hi we good man

  • Trev

    hey all
    thought i might leave a reply after a few hours of figuring out two errors ive been getting in itunes error 21 and 1600 i tried few things such as moving old firmware and all that sorts of things, and i eventualy tried a program called iREB-r4 and first time i used it to put my phone in DFU mode worked straight away in itunes so i suggest others giveing it a go.

    i did a jailbreak with sn0wbreeze 2.4 for firmware 4.3.1
    links for the ireb and sn0wbreeze below

    iREB-r4: http://www.funkyspacemonkey.com/fix-error-1600-1601-1602-1603-1604-custom-firmware-313-restore

    Sn0wbreeze: http://www.redmondpie.com/jailbreak-4.3.1-on-windows-iphone-4-3gs-ipad-1g-ipod-touch-using-sn0wbreeze-2.4-how-to-guide/

    good luck!

  • I have tried ired and snowbreeze, everytime i download from cydia or i update cydia my iphone crashes and goes str8 to the apple logo and goes nowhere, any suggestion why it does this? or do i need to download another program.

  • dahv

    DOES NOT WORK, the iphone will not boot even with a tethered boot, it’s useless

  • Warning

    WARNING!!!!
    YOU GUY CAN JAILBREAK IOS 4.3 WITH SNOWBREEZE
    BUTTTTTTTTTTTTTTTTTTTTTT!
    YOU CAN NOT ABLE TO BACKUP OR RESTORE YOUR PERSONAL DATA FROM ITUNE

    STAY AWAY

  • Trev

    I just jailbroke with snowbreeze on 4.3 and i was able to restore from backup.