PwnageTool Bundle for jailbreaking iPad 4.2 GM with old bootrom on iOS 4.2 has been released containing patch for broken Cydia. This bundle can be used with existing version of PwnageTool to create custom firmware files which are jailbroken and hacktivated for iPad. You can refer to the step by step guide below that will show you how to patch the existing version of PwnageTool so that it can jailbreak iOS 4.2 GM on iPad.

How To Jailbreak iPad On iOS 4.2 GM Using PwnageTool 4.1:

Step 1:

Download PwnageTool 4.1 from here.

Step 2:

Download the latest version of PwnageTool Bundle for iPad 4.2 GM from here or here and then extract it to your desktop.

Step 3:

Download iOS 4.2 GM for iPad and iTunes 10.1.

Step 4:

Copy PwnageTool that you downloaded in Step 1 to your desktop. Right click, and then click on “Show Package Contents”.

Step 5:

Navigate to Contents/Resources/FirmwareBundles/ and paste iPad1,1_4.2_8C134b.bundle file in this location. Now, simply close this folder.

Step 6:

Put atvBundlePatcher.sh and Info.plist.patch in the same directory as PwnageTool.app (NOT inside the bundle). Run the script. If you do not run this patch to remove Cydia, it will break sandboxing and MobileSafari will not run unless you do a tethered boot.

Step 7:

Now start this patched version of PwnageTool, Select iPad as your device and you will now notice that PwnageTool will automatically detect iOS 4.2 GM firmware.

Step 8:

Click “No” when PwnageTool prompts “Do you have an iPhone contract that would activate normally through iTunes?”.

Selecting “Yes” will update your baseband to the latest version. Click on “Yes” only if you are on an officially supported carrier like AT&T.

Step 9:

PwnageTool will now create the custom .ipsw file for your iPad which will be jailbroken. You will be prompted to save custom .ipsw firmware file. Save it to the desktop. It might take 10-15 minutes for building custom firmware.

Step 10:

Now its time to restore your iPad to this custom firmware 4.2 GM.

• Click on your iPad icon from the sidebar in iTunes.
• Press and hold left “alt” button (”Shift” button on Windows) on the keyboard and then click on “Restore” (Not “Update” or “Check for Update”) button in the iTunes
• Now, release the “Shift” button.

Step 11:

iTunes will now prompt you to select the location for your custom firmware 4.1 Once your iPad is successfully in DFU mode.

Step 12:

Now select the custom IPSW that was created and click the Choose button. Wait for a while till iTunes installs the new firmware 4.2 on your iPad. After the installation is done, your iPad will restart automatically. You have now successfully jailbroken iPad running iOS 4.2 GM.

Note:

To run unsigned apps, you need to download the tetherdboot tool from here . Unzip the ipsw, and put the iBSS.k48ap.RELEASE.dfu and kernelcache.release.k48 someplace, like your home directory. Put the iPad in DFU mode, open the terminal and do tetheredboot iBSS.k48ap.RELEASE.dfu kernelcache.release.k48 and after a white screen the ipad will reboot and you can run unsigned apps.

Disclaimer:

Since this is an unofficial release, we don’t  recommend using it as it may have bugs that in some cases might result in malfunctioning of your iPhone. This guide is for testing & educational purposes only. Follow it on your own risk. We are not responsible for any loss of important data or malfunctioning of your iPhone.

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Authors: _GadgetNews

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