iOS 9.9.13.1 (17A5831c) for iPhone XS Max ✗ This OTA is not signed. OTA firmwares cannot be restored to. IPSW Downloads collects them for
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Release Date September 4, 2019 Upload Date September 2, 2019 Filename 9d59bf50dbe5ebd6071d5884f54f179e69e7b320.zip Filesize 3.2 GiB Identifier iPhone11,6
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