watchOS 5.3 (16U5569a) for Apple Watch Series 4 (40mm, LTE) ✗ 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 16, 2019 Upload Date July 12, 2019 Filename 42dfe3200b645b28a360ad3578feefa822c4d134.zip Filesize 1.4 GiB Identifier Watch4,3
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