Create a folder on your desktop called Pwnage.
Download the Apple TV 2 iOS 5.2 firmware from here and Sn0wBreeze from here and place them into the Pwnage folder.
Extract the Sn0wBreeze archive to the same Pwnage folder.
Launch the Sn0wBreeze application from the folder we just extracted.
Click the arrow at the bottom right to begin.
Click the Browse for an IPSW button.
Navigate to the Pwnage folder on your desktop, select the ipsw we just downloaded, and click Open.
Once your device is determined, click the arrow at the bottom right to continue.
Click to select Simple Mode.
You will be asked to set the root partition size. You can leave the default and click the arrow at the bottom right to continue.
Your custom IPSW will now be generated.
Once the custom IPSW creation is complete you will be warned that after setting up your Apple TV the screen may be blank for 60 seconds. Click the OK button.
You will then be asked if you want to donate to the evad3rs for the untether. Click Yes if you wish to donate immediately or No if you do not want to donate at this time.
You'll then be informed that custom IPSW has been placed on your desktop. Click the large OK button to begin instructions on how to put your device into a restorable state.
Plug your Apple TV 2 into the computer using a micro-USB cable and click Start
In five seconds you will need to press and hold both the Menu and Play/Pause buttons on your Apple TV's remote for 7 seconds then release.
Once you've done this, iREB will run placing your device into a Pwned DFU state and iTunes will be ready for your to restore to your custom IPSW.
Hold down the Shift key and click the Restore Apple TV... button.
Navigate to the desktop, select the custom IPSW that Sn0wBreeze placed there, and click the Open button.
iTunes will prompt you to confirm the restore. Click the Restore button.
Once your Apple TV has restored successfully you will be ready to use your newly jailbroken device.
The first time we booted up the Apple TV 2 after this procedure the UI was a bit scrambled. A reboot fixed this. Also, some of your Apple TV tweaks may not be ready for iOS 5.2 yet so double check before updating.
If you need help with this tutorial please post a question in the comments or submit a question to the iClarified community using our Answers section.
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Of course, much thanks is due to the Evad3rs and iH8Sn0w for their hard work in making this jailbreak possible.
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