Apple’s new iOS 4.3 software will launch officially March 11th. For App Store developers iOS 4.3 GM edition (final) is available now. This tutorial will show you step by step how to  jailbreak your iPhone 4.3 GM Edition with PwnageTool Bundles. Unlike the plug and play ease of GreenPoison, this method will require a few extra steps, but nothing too difficult.

These instructions are for mac OS X users only, but a windows jailbreak shouldn’t be too far off. This is also a tethered jailbreak, meaning that every time you restart your iPhone, you will need to be plugged into your computer. It’s also important to note that although this is the final beta release, it is still a beta, so please proceed accordingly.  Now on to the tutorial!

Please note that you will need iOS 4.3 GM for this tutorial. It is only available to users with active Apple developer accounts, or that can type ‘download 4.3 GM ipsw’ into google. If you have to download it I suggest you download it to your desktop or the folder you create in step 2.

Step 1: Make sure your iPhone and iTunes software are up to date (4.2.1, iTunes 10.2)

Step 2: Download PwnageTool 4.2 from our downloads page. For this particular process you are going to also need PwnageTool Bundles, Universal Ramdisk Maker, and the tethered boot utility. Don’t wimp out on me now, I know it seems like a lot, but download it all into the same folder on your desktop, and you’ll do just fine.

Step 3: That folder you made on your desktop with all of our tools should have the PwnageTool app in it, right click on it and you should see the option to ‘show contents’. Selecting that will open a folder with all the components that make up PwnageTool. You then click contents -> resources -> firmwarebundles. Now take that pwnagetool bundle (unzip it if you haven’t already, should be 8F190.bundle) and drop it in that ‘firmwarebundles’ folder.

Step 4: Next, make sure the Universal Ramdisk Maker you downloaded is installed (just follow the on screen instructions). Launch PwnageTool in expert mode, select your device, and point it to that 4.3 GM firmware. PwnageTool will now create the custom firmware for your iPhone.

Step 5: After it is done creating the new ipsw, take note of where it is saved and open up your iTunes. With your device plugged in, hold down the ‘option’ key and click restore. locate your custom ipsw and let iTunes load it up!

Step 6: Take that custom firmware file we just used and change the extension from .ipsw to .zip and then extract it. Your looking for 2 files, firmware -> dfu -> and yep, those 2 files. copy them. Make 1 more folder and call it “tetheredboot” and paste the files inside it. Now remember that tethered boot utility you downloaded earlier? Extract it and move it into your tethered boot folder, and turn off your iPhone.

Step 7: Start your mac terminal app and type in:

sudo -s

enter your admin password and then:

../tetheredboot/tetheredboot

../tetheredboot/iBSS.n90ap.RELEASE.dfu

../tetheredboot/kernelcache.release.n90

press enter

Step 8: After some lines of code it will ask you to put your device in DFU mode : hold power button for 10 seconds -> continue holding power button and press home for 10 seconds, and voila! Just wait and your device will boot in tethered jailbreak mode. Once it’s loaded disconnect and enjoy!

  • Awesome walkthrough man. Quality job.

    • Hey iPadBeans,

      I’ve noticed you’ve been posting a bunch of comments on iDB today saying things like “great job”, or “cool stuff”, or whatever. I suspect you’re doing that just to have links to your website on iDB and I do not approve that. If I see one more of these pointless comments, I will have to ban you from commenting here.

      Sebastien

    • Twited21

      Haha busted 

      • Polemicist

        I LOL’d…

  • Emi

    Thanks for the thorough guide.

  • mwebsterpgh

    Just did the 4.2.1 jailbreak and unlock. Not enough perks in 4.3 to upgrade.

    • Muskel

      4.2.1 unlock? I don’t think it has been released already has it?

  • duders

    How do we know this method will work on an A5 processor? Just conjecture at this point, right?

  • Jj

    Wow. I can’t wait till it comes out for windows. !! I want to try the multi touch stuff

  • how to jailbreak untethered iphone with 4.3

  • sathis

    my iPhone3g 4.2.1 but wallpaper no set home screen what problem I have instal in winterboard but no set pls help me

    • Polemicist

      iPhone 3G install JB application called ZToggle…

  • Salu

    It’s my first time but can’t down load wts happening with my I phone

  • Unlock

  • I tried it as is. While on step 5, iTunes gave me an error 1. Search said this was due to the phone not getting into DFU mode. I tried to get into DFU manually but it still didn’t work.
    I restored the original Apple firmware when the phone was in same condition and it worked.

    Seeks this doesn’t work anymore, or I do not know what I should have done right.

  • raji

    thx.. 😀 i need pwange tool for 4.3 version 🙁

  • Sam Lattof

    I’m not into Mac … I need this badly on windows
    Hope someone can help 🙁