watchOS 5.3 (16U5545c) 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 June 11, 2019 Upload Date June 6, 2019 Filename 2f903da985a8ed694965aa01d6838c8e4a262e49.zip Filesize 1.4 GiB Identifier Watch4,3
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