Jailbreak iPad 4.2.1 iOS with PwnageTool Bundles

Msft guy has just released the PwnageTool bundle for iOS 4.2.1 GM on iPad. The following bundle is available for download with a patch for broken Cydia. In this post, I will show you how to use this bundles to jailbreak your iPad on iOS 4.2.1 GM and install Cydia on it.

STEP 1: Download PwnageTool 4.1

STEP 2: Download the latest version of PwnageTool Bundles from msft guy here and then extract it to your desktop.

STEP 3: Copy PwnageTool you have download to your desktop. Right click, and then click on “Show Package Contents”.

STEP 4: Now browse to Contents > Resources > FirmwareBundles.

STEP 5: Now copy the custom bundle iPad1,1_4.2.1_8C148.bundle in its location and close the folder.

STEP 6: Use Cydia binary from http://apt.telesphoreo.org/cydia/debs/cydia_1.0.3222-73_iphoneos-arm.deb, start “Terminal” program on your Mac and run the following commands:
mv Cydia_ Cydia.bak

bspatch Cydia.bak Cydia_ Cydia.patch

Then copy to /Applications/Cydia.app/Cydia_

and chmod +x+s /Applications/Cydia.app/Cydia_
STEP 7: Now start the patched version of PwnageTool, select iPad as your device and you will now notice that PwnageTool will automatically detect iOS 4.2.1 GM firmware.

STEP 8: Now, follow the from step 4 to step 7 posted here in our previous guide.

STEP 9: After creating your custom firmware successfully, you will have to restore your iPad to the firmware cooked by patched PwnageTool by clicking on the iPad icon on the left sidebar of iTunes then hold left “alt” button (“Shift” button on Windows) on the keyboard and then click on “Restore” then release the alt button, and select the custom firmware created by PwnageTool.

STEP 10: Once the installation is done, your iPad will reboot and you'll get a jailbroken iPad on iOS 4.2.1 with a working version of Cydia on it and here's a screenshot for that:

Cydia still crashes when trying to customize categories, but installing and updating packages seems to work OK. Also, the guy is currently cooking a bundle for iPod touch, we'll be back whenever the bundle is uploaded.

Download iOS 4.2.1 GM for iPad [Direct link]