watchOS 5.3 (16U5526f) 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 May 15, 2019 Upload Date May 13, 2019 Filename 3c35911120d956c99ae6bb3a895cea89a4e8771c.zip Filesize 1.4 GiB Identifier Watch4,3
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