tvOS 11.3 (15L6211) 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 March 29, 2018 Upload Date March 19, 2018 Filename 2de4c3336d684b3a216b859061d19c0ce6b993bc.zip Filesize 1.4 GiB Identifier AppleTV6,2
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