iOS 9.9.15.1 (19B6074) for iPhone 7 Plus (GSM) ✗ This OTA is not signed. OTA firmwares cannot be restored to. IPSW Downloads collects them for
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Release Date October 25, 2021 Upload Date October 15, 2021 Filename efe672d877964e47014c25ed196f57784653ad8a.zip Filesize 4.3 GiB Identifier iPhone9,4
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