tvOS 12.0 (16J5355a) 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 August 20, 2018 Upload Date August 16, 2018 Filename f8aed11be8b5cb5260c8f508d2e9d55f3ba6491d.zip Filesize 1.4 GiB Identifier AppleTV5,3
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