tvOS 11.1 (15J5559d) 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 September 28, 2017 Upload Date September 22, 2017 Filename 86713e4379781f4a1e2f798b8d3fd2049d96d977.zip Filesize 1.1 GiB Identifier AppleTV5,3
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