watchOS 4.0 (15R5371a) for Apple Watch Series 1 (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 August 28, 2017 Upload Date August 26, 2017 Filename a0f1cfa08972b21d70c1dc664e841089de1892be.zip Filesize 1.1 GiB Identifier Watch2,7
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