watchOS 5.1 (16R5568d) for Apple Watch Series 4 (40mm) ✗ This OTA is not signed. OTA firmwares cannot be restored to. IPSW Downloads collects them for
potential future use. They might also be useful if you're doing research.
Release Date October 2, 2018 Upload Date September 27, 2018 Filename 979f0dc4512b9054559960653cfbc347aeab9bd9.zip Filesize 1.3 GiB Identifier Watch4,1
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