watchOS 4.3.1 (15T5565a) for Apple Watch Series 3 (38mm, LTE) ✗ This OTA is not signed. OTA firmwares cannot be restored to. IPSW Downloads collects them for
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Release Date May 7, 2018 Upload Date May 3, 2018 Filename 64c26c54f024815e8cf2b979b7df481ed6c50fba.zip Filesize 1.2 GiB Identifier Watch3,1
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