iphone Dev team has Released the new version of PwnageTool 4.2 and now its available for Download to jailbreak ios 4.2.1 on iphone 4/3GS, ipad ,ipod touch 4G/3G and Apple TV 2G. PwnageTool 4.2 Is untethered jailbreak you can check step by step Guide to jailbreak ios 4.2 with PwnageTool 4.2 Below.

Step by Step Guide to jailbreak ios 4.2.1 with PwnageTool 4.2 :

Step 1 : Download PwnageTool 4.2.

Step 2 : Make sure you have latest version of itune.

Step 3 : Connect your Device with Computer via USB cable

Step 4 : take the Complete Backup of your Data and all important Files.

Step 5 : Now Launch Pwnage Tool and Select expert mode, then Select your Device.

Step 6 : Now Select ios 4.2 firmware

Step 7 : Select “General” and click on the blue arrow to continue.

Step 8 : You will be asked to save your custom .ipsw file. Save it to your folder you created on your Desktop.

Step 9 : Now it will start to make .ipsw file witch take some time around 10 minits.

Step 10 : Once your ipsw has been built you will be asked to connect your iPhone to the computer.

Step 11 : Now your Device will enter in DFU mode

Step 12 : once it successfully enter in DFU Mode then pwnageTool will prompt you to launch iTunes.

Step 13 :  if you have done everything right, then you will enter in itune Recovery mode.

Step 14 : Now hold the alt button and click restore, and point to the custom firmware you just created and complete the installation.

That’s it now you have done, your ios 4.2 is jailbroken with PwnageTool 4.2.

Stay tune with us for more Details, We will update you with more information.