tvOS 11.3 (15L5164e) 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 January 25, 2018 Upload Date January 20, 2018 Filename a9fc2b559cd8b3bea926b81a5cef1b81fc3b48e7.zip Filesize 1.4 GiB Identifier AppleTV6,2
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