iOS 9.9.13.1 (17A5837a) for iPhone 6s ✗ This OTA is not signed. OTA firmwares cannot be restored to. IPSW Downloads collects them for
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Release Date September 10, 2019 Upload Date September 7, 2019 Filename df8bce71cc4cd39e21547b1b8e0baebca5939710.zip Filesize 2.6 GiB Identifier iPhone8,1
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