iOS 9.9.11.4 (15F5037c) 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 April 2, 2018 Upload Date March 29, 2018 Filename 8c0439ea9c1394389c8212066b5d88ecd84956a1.zip Filesize 1.8 GiB Identifier iPhone6,1
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