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  • Home >> iOS >> Jailbreak iPhone 3GS on iOS 4.3 GM

    Jailbreak iPhone 3GS on iOS 4.3 GM


    Jailbreak iPhone 3GS / New Bootrom on iOS 4.3 GM. Recently, I shared Jailbreak iPhone 4 on iOS 4.3 GM and Jailbreak iPod Touch 4G on iOS 4.3 GM. Now We have the jailbreak iPhone 3GS iOS 4.3 GM. It was released by iH8sn0w. This is a tethered jailbreak, so your device need to be in the jailbroken state after every reboot.

    Jailbreak iPhone 3GS on iOS 4.3 GM

    Jailbreak iPhone 3GS on iOS 4.3 GM

    1. Download PwnageTool 4.2.
    2. Download PwnageTool bundle for iPhone 3GS iOS 4.3 GM
    3. Download iOS 4.3 GM IPSW firmware for iPhone 3GS
    4. After the above files are downloaded, move them to the desktop or your prefered folder location.
    5. Now right click the PwnageTool 4.2 icon and select “Show Package Contents“.
    6. Now browse to Contents/Resources/FirmwareBundles/ and paste the Old / New Bootrom bundle file here.
    7. Download Ramdisk Fixer 1.5 and install it.
    8. Run PwnageTool and choose expert mode
    9. Navigate to the iOS 4.3 GM firmware IPSW file and click on build button.
    10. Now Run iTunes, It should detect the iPhone which is connected to the PC.
    11. Restore your iPhone 3GS to this newly created iOS 4.3 GM firmware.
    12. Now go to iTunes and hold the alt key and click on ”Restore“ button.
    13. Navigate to the cooked firmware and select it.
    14. Be patient and wait while the iPhone reboots.

    Tetheredboot Instructions

    1. Download TetheredBoot
    2. Once downloaded, extract the zip file
    3. Make a copy of the iPhone 3GS iOS 4.3 custom firmware and change its extension to .zip.
    4. Extract the custom iOS 4.3 zip file you just created.
    5. Now copy the files under /Firmware/dfu/ directory
    6. Move the kernelcache.release.n90 and iBSS.n90ap.RELEASE.dfu files to the tetheredboot utility folder.
    7. Once done, Switch off iPhone 3GS and launch the Terminal and enter the following commands :

      sudo -s

      cd /User/Desktop/Tetherboot/

      ./tetheredboot iBSS.n90ap.RELEASE.dfu kernelcache.release.n90

    8. You will be prompted to enter DFU mode. To enter into it, hold the power+home button for 10 seconds and release te power button, but keep holding the home button for another 10 seconds.

    If you have followed all the above instructions properly you should have your iPhone 3GS jailbroken on iOS 4.3 GM.

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