watchOS 4.0 (15R5365a) for Apple Watch Series 1 (38mm) ✗ This OTA is not signed. OTA firmwares cannot be restored to. IPSW Downloads collects them for
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Release Date August 22, 2017 Upload Date August 19, 2017 Filename 9c42b41b015e3394d7c2ce0231450fa520e26758.zip Filesize 1.1 GiB Identifier Watch2,6
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