watchOS 4.3 (15T5187e) 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 February 21, 2018 Upload Date February 16, 2018 Filename a565e0c0c1a8c97e611e947f28c8765a17ca205e.zip Filesize 1.1 GiB Identifier Watch2,6
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