tvOS 12.1 (16J5575c) 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 September 18, 2018 Upload Date September 14, 2018 Filename e5d18af5d84aaaf1813c73f64a2f402310a02b96.zip Filesize 1.6 GiB Identifier AppleTV6,2
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