Given the recent news that a jailbreak for tvOS 10.1.1 may be coming after all, we recently advised all Apple TV 4 owners to downgrade from tvOS 10.2 to tvOS 10.1.1 immediately before signing closes.
Hand in hand with the possibility of a jailbreak comes the necessity of saving blobs for your device, which will allow you to upgrade, downgrade, or restore your device at a later date, without worrying about signing windows. This guide will walk you through how to save blobs for your Apple TV.