watchOS 5.1.3 (16S5535a) for Apple Watch Series 3 (38mm) ✗ 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 January 7, 2019 Upload Date January 4, 2019 Filename e6b9276d5f7224f69f35bdec3cc5d8bb0461f8ed.zip Filesize 1.3 GiB Identifier Watch3,3
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