watchOS 4.3 (15T5209a) for Apple Watch Series 1 (38mm) ✗ 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 March 12, 2018 Upload Date March 9, 2018 Filename 2475f1ad20dafbd0115342aec622071f69062bdd.zip Filesize 1.1 GiB Identifier Watch2,6
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