A days ago Apple TV has unboxed and the iPhone Dev team managed to jailbreak apple TV 2G by using SHAtter exploit and pre-jailbroken IPSW from PwnageTool.But it’s important to save SHSH Blobs for your new Apple TV so that you’ll be always able to revert to the stock firmware to jailbreak it.
Just follow the steps that has given below to save SHSH blobs for Apple TV 2G.
Step 1: Download TinyUmbrella 4.1.5 and install it.
Step 2: Connect your Apple TV with your computer using micro USB cable.
Step 3: Your Apple TV will now recognized by iTunes.
Step 4: Open TinyUmbrella and select ‘Advanced Options’.
Step 5: Make sure that ‘Requested Version’ is set to ‘AppleTV 4.1′ and ‘Request From’ to ‘Cydia’.
Step 6: Enter the ECID for your Apple TV manually. You can find your ECID in the System Profiler (Apple Logo -> About This Mac -> More Info) under the USB tab. Copy your ECID.
Step 7: Paste your ECID into the empty field.
Step 8: Select ‘Save My SHSH’. Wait for confirmation message.