tvOS 11.3 (15L5175d) for Apple TV 4K ✗ This OTA is not signed. OTA firmwares cannot be restored to. IPSW Downloads collects them for
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Release Date February 7, 2018 Upload Date February 1, 2018 Filename 192920e25812815a384417507f232e2cd672ce3d.zip Filesize 1.4 GiB Identifier AppleTV6,2
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