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  • Home >> Apple >> Jailbreak iPhone 4 on iOS 4.3 GM

    Jailbreak iPhone 4 on iOS 4.3 GM

    iPhone 4 running on iOS 4.3 GM can be jailbroken. After the release of The iOS 4.3 GM build, @jcf_dev and @msft_guy have been able to Jailbreak iPhone 4 on iOS 4.3 GM. You could use iOS 4.3 GM IPSW to restore it.

    The above jailbreak is tethered jailbreak. Do take backup before proceeding further

    Jailbreak iPhone 4 on iOS 4.3 GM

    Jailbreak iOS 4.3 GM on iPhone 4

    1. Download iOS 4.3 GM IPSW for iPhone 4.
    2. Download PwnageTool 4.2 for Mac or Download iREB RC3 for windows.
    3. For Mac OS X users, run PwnageTool 4.3 and click on “DFU” mode button to put your device into pwned DFU mode.
    4. For Windows users, Run iREB RC3 and select your device to put it into pwned DFU mode
    5. Once the above process is done, Run iTunes
    6. For Mac OS X users, hold alt/option and click on restore button and select the custom IPSW
    7. For Windows users, hold shift and click on restore button and select the custom IPSW

    Following are for TetheredBoot Instructions

    1. For Mac OS X users, Download tetheredboot_mac.zip
    2. For Windows users, Download tetheredboot_win.zip
    3. Now put your device into DFU mode by switching on the device and hold power+home for 10 seconds
    4. Continue to hold home till the device is switched off, by now you should be now in DFU mode
    5. Now check out this youtube video

    To get the iBSS and kernel cache (which is required for TetheredBoot), you’ll have to rename your custom IPSW to a .ZIP file. After extracting the contents of the .ZIP (IPSWs are just ZIPped up files), you’ll be presented with the kernel cache. K48 is for the iPad, N90 is for the iPhone, and N81 is for the iPT4G. To get the iBSS, you’ll have to go to the /Firmware/dfu/ folder. Make sure you grab the iBSS, not the iBEC! Use this files in conjunction with the video above to boot your iDevice up. It may seem like a lot at first, but it’s very straightforward after you try it once.)

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