Seas0nPass goes un-tethered for AppleTV 4.2.1 (iOS 4.3)

NOTE: Seas0nPass provides an 'un-tethered' jailbreak for the latest 4.2.1 (iOS 4.3) AppleTV software.

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Pre-launch checklist

1. Make sure you're running the latest version of iTunes.
2. Download Seas0nPass: Mac [10.6 or later] | Windows [XP or later]
3. A micro USB cable will be required to complete the jailbreak.
4. Disconnect all iPods, iPhones, and iPads from the computer before running Seas0nPass.

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Using Seas0nPass to jailbreak the AppleTV

Step 1: Unzip the 'Seas0nPass.zip' file and launch Seas0nPass.

Step 2: If your AppleTV is not yet jailbroken, select 'Create IPSW'. (if already jailbroken, and you just need to do a 'tethered boot' scroll down).

Step 3: The latest AppleTV software will be downloaded and used to create a custom 'jailbroken' software file.

Step 4: When prompted, connect your AppleTV using a micro-USB cable (leave power disconnected), and hold both the 'MENU' and 'PLAY/PAUSE' buttons for 7 seven seconds.

Step 5: iTunes will open automatically and start the restore process.
 
Step 6: iTunes will confirm the restore when complete - your AppleTV is now jailbroken.