How to Jailbreak Your iPad Using RedSn0w (Mac) 4.2.1

Follow the Steps mentioned below:-

Step One
Create a folder on your desktop called Pwnage

Download RedSn0w from here and place it in the Pwnage folder. Likewise, download the latest 4.2.1 firmware from below and place it in the same folder. 

4.2.1: iPad1,1_4.2.1_8C148_Restore.ipsw

Extract the redsn0w app from the RedSn0w zip file by double clicking it.


Step Two
Connect your iPad to the computer and launch iTunes. 


Select your iPad from the list of devices on the left. Now hold down Option and click the Restore button. Restore is preferred as it won't create any wasted space on your iPad.


Navigate to the Pwnage folder on your desktop and select the 4.2.1 firmware ipsw. Click the Choose button to continue. 


Step Three
Once iTunes has finished updating your iPad to the desired firmware open the Pwnage folder on your desktop and launch the redsn0w application from the redsn0w folder we extracted earlier.


Step Four
Once RedSn0w opens click the Browse button


Step Five
Select the 4.2.1 firmware ipsw we placed in the Pwnage folder on our desktop then click Open.


Step Six
Once the firmware has been verified click the Next button to continue.


Step Seven
RedSn0w will now prepare the jailbreak data


Step Eight
From this window you can select the jailbreak options you would like. Make sure Cydia is selected and click the Next button to continue


Step Nine
Please plug your iPad into the computer and make sure its OFF then click the Next button


Step Ten
RedSn0w will now guide you through the steps to get into DFU mode. 


Hold down both the Home button and the Power button for 10 seconds.


Release the Power button and continue holding the Home button until RedSn0w detects the device.


Step Eleven
Your iPad will now reboot


Step Twelve
RedSn0w will then begin uploading the new RAM Disk and Kernel.


Step Thirteen
Once this is complete you will be notified that RedSn0w is done. Click the Finish button. When your iPad finishes rebooting (5 minutes or so) it will be jailbroken with Cydia on the SpringBoard.



IMPORTANT:
To use Redsn0w to help you boot back into your jailbroken device simply select Just boot tethered right nowfrom the options window and click Next.

Thats it you are DOne!!!

How to Jailbreak Your iPad Using RedSn0w (Windows) 4.2.1

Follow the Steps mentioned below:-


Step One
Create a folder on your desktop called Pwnage

Download RedSn0w from here and place it in the Pwnage folder. Likewise, download the latest 4.2.1 firmware from below and place it in the same folder. 

4.2.1: iPad1,1_4.2.1_8C148_Restore.ipsw

Extract the redsn0w executable from the RedSn0w zip file into the same folder.


Step Two
Connect your iPad to the computer and launch iTunes. 


Select your iPad from the list of devices on the left. Now hold down Shift and click the Restore button. Restore is preferred as it won't create any wasted space on your iPad.


Navigate to the Pwnage folder on your desktop and select the 4.2.1 firmware ipsw. Click the Choose button to continue. 


Step Three
Once iTunes has finished updating your iPad to the desired firmware open the Pwnage folder on your desktop and launch the redsn0w application from the redsn0w folder we extracted earlier.


Step Four
Once RedSn0w opens click the Browse button


Step Five
Select the 4.2.1 firmware ipsw we placed in the Pwnage folder on our desktop then click Open. 


Step Six
Once the firmware has been verified click the Next button to continue.


Step Seven
RedSn0w will now prepare the jailbreak data


Step Eight
From this window you can select the jailbreak options you would like. Make sure Cydia is selected and click the Next button to continue.


Step Nine
Please plug your iPad into the computer and make sure its OFF then click the Next button


Step Ten
RedSn0w will now guide you through the steps to get into DFU mode. 


Hold down both the Home button and the Power button for 10 seconds.


Release the Power button and continue holding the Home button until RedSn0w detects the device.


Step Eleven
Your iPad will now reboot


Step Twelve
RedSn0w will then begin uploading the new RAM Disk and Kernel.


Step Thirteen
Once this is complete you will be notified that RedSn0w is done. Click the Finish button. When your iPad finishes rebooting (5 minutes or so) it will be jailbroken with Cydia on the SpringBoard.



IMPORTANT:
To use Redsn0w to help you boot back into your jailbroken device simply select Just boot tethered right nowfrom the options window and click Next.

How to Jailbreak Your iPad Using Greenpois0n (Windows)

Follow the Steps mentioned below:-


Step One
Open your web browser of choice and navigate to http://www.greenpois0n.com. Click the Windows link at the bottom of the screen.


Step Two
When prompted save the download to your desktop




Step Three
Double click the downloaded gp_win_rc2.zip file then drag the greenpois0n.exe file to the desktop. Doublegreenpois0n.exe from the desktop to launch the application




Step Four
Power off your iPad then click the large Prepare to Jailbreak (DFU) button


Step Five
You will now be instructed on how to place your iPad into DFU mode.

You will be asked to press and hold the sleep button for 2 seconds.


Continue holding sleep; press and hold home for 10 seconds.


Release sleep button; continue holding home for 15 seconds.


Step Six
Once your iPad is successfully in DFU mode you may click the Jailbreak button.


Step Seven
Greenpois0n will now jailbreak your device.




Step Eight
Click the Quit button once the software application has completed.


You'll notice some verbose mode text scrolling on your device.

Step Nine
After the iPhone restarts you'll have a new Loader application on your Springboard. Press to launch it.


Step Ten
Press to select Cydia then press the large Install Cydia button that appears.


Step Eleven
Once Cydia has installed successfully you will be asked if you want to remove Loader from your device. Press the Remove button then press the Home button. Your device will now automatically reboot.


Step Twelve
When your iPad has restarted you can run Cydia. Let it do all the necessary updates.



Thats it you are DOne !