watchOS 5.1 (16R5559d) 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 September 18, 2018 Upload Date September 14, 2018 Filename 7247c20578cb894e19867bedf60f7a690811f449.zip Filesize 1.3 GiB Identifier Watch3,3
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