Jailbreak Your iDevice
Now, go to the Greenposi0n Website and download the most recent version of Absinthe for the OS you’re using.
Extract the zip file to a convenient location like your desktop or Documents folder. Now run absinthe-win-2.0.4.exe.
You’ll see the following screen while absinthe extracts files. It can take a few minutes, just let it run until it’s finished.
When the extraction process is complete, you’ll see the absinth-win-2.0.4 folder it created during the extraction. Open that folder.
You’ll see three files and a data folder. Make sure your iDevice is plugged in and Double click on absinthe.exe.
After it detects your iDevice, click the Jailbreak button.
Now wait while the new software is installed on your iDevice. You’ll see it reset itself during the process.
Congratulations! You now have a groovy jailbroken iPhone, iPad or iPod touch. The process couldn’t be easier.
Disconnect your device and swipe it to the right and you’ll see the Cydia app. This provides a whole new world of apps, settings and features that aren’t available with an iDevice that isn’t jailbroken.
Launch the Cydia app and wait while it prepares the Filesystem.
After that’s complete, select whether you’re a User, Hacker or Developer. Not all available apps are designed to be used by everyone. Select User unless you know you’re a Hacker or Developer.
Select User and tap Next. Then have fun enjoying a bunch of cool features and apps that you wouldn’t have access to from the iTunes store.
Finally, you’ll probably want to reload the data that you backed up in the first steps. Connect your Device, launch iTunes, right click on the device and select Restore. Select the most recent backup and let it run.