tvOS 11.4 (15L6577) 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 May 29, 2018 Upload Date May 18, 2018 Filename 09e58331deac46addb2e9885f5c0e4a462aa0cdd.zip Filesize 1.4 GiB Identifier AppleTV6,2
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