watchOS 5.3.7 (16U674) for Apple Watch Series 3 (42mm) ✗ This OTA is not signed. OTA firmwares cannot be restored to. IPSW Downloads collects them for
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Release Date May 18, 2020 Upload Date May 8, 2020 Filename 4f7ec4c45e6aa1513af937d5f28aa0ea73021426.zip Filesize 1.3 GiB Identifier Watch3,4
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