How to Tethered Jailbreak iOS 4.3 on iPad and iPhone With PwnageTool Bundle for Mac OS X

For those unaware, just like the Sn0wbreeze, the PwnageTool jailbreak tool is essential for iPhone unlockers. This is a special jailbreak tool that has a capability to jailbreak the iOS while preserving the unlockable baseband of your device so that you can unlock your iPhone (old baseband version) using the ltest version of the iPhone Dev Team’s Ultrasn0w 1.2, which can be downloaded in Cydia app Store once the device is running on a jailbroken iOS. This is a tethered jailbreak method. Meaning, you have to connect your device with Mac for successful reboot.

This tutorial is aimed for advanced jailbreakers/users as it requires a ramdisk, but we’ll try our best to keep it as simple as possible. You can follow our ideas for tethered jailbreak your iOS device with PwnageTool tutorial posted below:


Note: iPhone unlockers should stay away from this jailbreaking method because Ultrasn0w unlocking does not support iOS 4.3 due to ASLR implementation.

Download the Required Tools and Software:
1) Latest iTunes 10.2.1 and install it on your Mac machine:
http://news.ziphone.org/iphone-downloads
2) PwnageTool:
http://news.ziphone.org/iphone-downloads
3) PwnageTool bundles:
http://news.ziphone.org/iphone-downloads
4) Universal Ramdisk Fixer:
http://news.ziphone.org/iphone-downloads
5) iOS 4.3 final version:
http://news.ziphone.org/iphone-downloads

How To Patch / Modify PwnageTool using custom bundles:
In order to enable PwnageTool to jailbreak iOS 4.3 you need to modify it using the custom PwnageTool bundles.

Step 1: Launch Universal Ramdisk Fixer and just simply follow the on-screen instruction to fix the ramdisk.

How To Create Custom iOS 4.3
Step 1: Launch the iTunes 10.2.1 and backup your iOS device
Step 2: Start the modified PwnageTool with PwnageTool Bundle
Step 3: Now select your iOs devie (iPhone or iPad) and click the blue arrow to continue.
Step 4: Browse for iPSW file (iOS 4.3) which you have already downloaded earlier.
Step 5: then, simply click the Build button to create custom firmware and save it on your PC.

How To Restore Custom iOS 4.3 into the iOS Device Through iTunes:
Step 1: You need to put your iOS device into the DFU mode. Just simply follow the onscreen instructions:
Hold Power and Home buttons for 10 seconds
Now release the Power button but continue holding the Home button for 10 more seconds
You device should now be in DFU mode
Step 2: Once in DFU mode, launch iTunes and the software will automatically detect your iOS device, just press OK to continue.
Step 3: Now, install the custom cooked firmware by pressing the Alt/Option key and click on “Restore” in iTunes. Wait till the restoration completed. The device will reboot after it has been restored successfully.

How To Tethered Boot iOS Device:
Agaian, there’s no available untethered jailbreak method for the iOS 4.3, so we need to tethered boot the device every time we reboot. You can use software called “tetheredboot” to boot your iOS device into a tethered jailbroken state.

Tetheredboot requires two files from iOS 4.3:
kernelcache.release.n90,
and iBSS.n90ap.RELEASE.dfu.

To get these files, change the extension of iOS 4.3 from .ipsw to .zip and then extract it. You will find them under /Firmware/dfu/ folder. Put all these files and tetheredboot utility into a new folder on desktop and name it “tetheredboot”.

How To Jailbreak iOS 5.0.1/5.0/4.3.5 iPhone 4/3Gs iPod Touch 4/3 iPad: