tvOS 12.3 (16M5129d) 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 April 8, 2019 Upload Date April 4, 2019 Filename 9a61a3035ab9d199690c50522462cb0d3b4bdb21.zip Filesize 1.6 GiB Identifier AppleTV6,2
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