watchOS 4.3 (15T5212a) 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 March 16, 2018 Upload Date March 14, 2018 Filename daadb237bf84bbcbec33b9f12402998cb2c3dbf3.zip Filesize 1.1 GiB Identifier Watch2,6
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