watchOS 5.2.1 (16U5110a) for Apple Watch Series 4 (44mm) ✗ This OTA is not signed. OTA firmwares cannot be restored to. IPSW Downloads collects them for
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Release Date April 29, 2019 Upload Date April 26, 2019 Filename 1cf7fc2fabfe828c75bbc4072a7de8487c985b99.zip Filesize 1.3 GiB Identifier Watch4,2
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