iOS 9.9.11.4 (15F5061d) for iPhone 5s (GSM) ✗ This OTA is not signed. OTA firmwares cannot be restored to. IPSW Downloads collects them for
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Release Date May 1, 2018 Upload Date April 26, 2018 Filename 3c1082623c68b69a96988eb40624627fbfa7b3e9.zip Filesize 1.8 GiB Identifier iPhone6,1
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