watchOS 5.1 (16R5577c) for Apple Watch Series 3 (42mm) ✗ 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 9, 2018 Upload Date October 5, 2018 Filename a1f83fc063c0c9bbc8a7535ae0251e95bec69f56.zip Filesize 1.3 GiB Identifier Watch3,4
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