watchOS 5.1 (16R591) for Apple Watch Series 1 (42mm) ✗ This OTA is not signed. OTA firmwares cannot be restored to. IPSW Downloads collects them for
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Release Date October 30, 2018 Upload Date October 22, 2018 Filename 702cdf7d3a9c54c7f860f405c584f1cc96a197a4.zip Filesize 1.3 GiB Identifier Watch2,7
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