watchOS 5.1.2 (16S5046a) for Apple Watch Series 4 (40mm, LTE) ✗ This OTA is not signed. OTA firmwares cannot be restored to. IPSW Downloads collects them for
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Release Date November 15, 2018 Upload Date November 13, 2018 Filename d7e547a18a0b2416aacdab3e579f34fbc6241c1e.zip Filesize 1.4 GiB Identifier Watch4,3
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