watchOS 5.1.3 (16S5531a) for Apple Watch Series 3 (42mm, 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 December 19, 2018 Upload Date December 17, 2018 Filename d24d014147d97a1fff09fc6358de9966ad942d7f.zip Filesize 1.3 GiB Identifier Watch3,2
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