watchOS 4.3.1 (15T5565a) for Apple Watch Series 3 (38mm) ✗ 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 d0b45140e511e09374d2db25c7612787e65b0795.zip Filesize 1.1 GiB Identifier Watch3,3
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