tvOS 12.1.1 (16K45) for Apple TV 4 (2015) ✗ This OTA is not signed. OTA firmwares cannot be restored to. IPSW Downloads collects them for
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Release Date December 5, 2018 Upload Date November 28, 2018 Filename 0dfcec2a91db3f51778d8b467125609584569762.zip Filesize 1.4 GiB Identifier AppleTV5,3
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