watchOS 5.3 (16U5566a) 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 July 9, 2019 Upload Date July 3, 2019 Filename 928d473b70b3e4ec5ea83877b775aebd33471791.zip Filesize 1.3 GiB Identifier Watch4,4
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