watchOS 5.3 (16U5537b) for Apple Watch Series 3 (42mm) ✗ 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 28, 2019 Upload Date May 23, 2019 Filename c2809bee00d764d8dd2e5494fec8843aceae1c12.zip Filesize 1.3 GiB Identifier Watch3,4
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