watchOS 5.3 (16U5545c) for Apple Watch Series 4 (44mm, 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 June 11, 2019 Upload Date June 6, 2019 Filename 5954dc97a70c1811cb765d15f373cd0f7dd18598.zip Filesize 1.3 GiB Identifier Watch4,4
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