iOS 9.3 (13E5181f) 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 January 14, 2016 Upload Date January 13, 2016 Filename ca6d3ab726863f08849d6eac4c56fdb5393280a5.zip Filesize 1.3 GiB Identifier iPhone6,1
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