iOS 9.9.13.1 (17A5831c) for iPhone 8 Plus (GSM) ✗ 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 cbdbff5ee958098026d0c795ca546d51f03412c2.zip Filesize 2.9 GiB Identifier iPhone10,5
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