watchOS 5.3 (16U5566a) for Apple Watch Series 1 (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 July 9, 2019 Upload Date July 3, 2019 Filename 865ace529712faf2d885896f50866a5d554cdcf6.zip Filesize 1.3 GiB Identifier Watch2,6
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