watchOS 6.3 (17U216) for Apple Watch Series 5 (44mm) ✗ This OTA is not signed. OTA firmwares cannot be restored to. IPSW Downloads collects them for
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Release Date January 26, 2021 Upload Date January 14, 2021 Filename 2eb8e3308acb08ae50bf70e60643221f407c5d4e.zip Filesize 1.4 GiB Identifier Watch5,2
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