watchOS 5.2.1 (16U5101c) for Apple Watch Series 4 (40mm, LTE) ✗ This OTA is not signed. OTA firmwares cannot be restored to. IPSW Downloads collects them for
potential future use. They might also be useful if you're doing research.
Release Date April 22, 2019 Upload Date April 19, 2019 Filename a602cf41da69ee23e21fbc86935d7e45463c6bf2.zip Filesize 1.4 GiB Identifier Watch4,3
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