tvOS 12.1 (16J5593c) 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 October 9, 2018 Upload Date October 5, 2018 Filename 53ab20606ca9a2bcf456ae3b83d77cdba1949b7d.zip Filesize 1.4 GiB Identifier AppleTV5,3
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