watchOS 4.2 (15S5100a) 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 November 13, 2017 Upload Date November 10, 2017 Filename ca9a7bf35e8472ee6b898df74c45d6c15d559431.zip Filesize 1.5 GiB Identifier Watch3,4
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