watchOS 5.3.6 (16U662) for Apple Watch Series 4 (44mm, 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 March 24, 2020 Upload Date March 19, 2020 Filename d621d893309b89eee6d4375333566d7a794cadbb.zip Filesize 1.3 GiB Identifier Watch4,4
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