watchOS 5.3 (16U5558b) for Apple Watch Series 4 (44mm) ✗ 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 June 24, 2019 Upload Date June 20, 2019 Filename 942936badf195437486ed816713f2864f8f19479.zip Filesize 1.3 GiB Identifier Watch4,2
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