iOS 9.3 (13E5181f) for iPhone 4s ✗ This OTA is not signed. OTA firmwares cannot be restored to. IPSW Downloads collects them for
potential future use. They might also be useful if you're doing research.
Release Date January 14, 2016 Upload Date January 13, 2016 Filename f89c8366987c19f3c1c65daed1045c846577fb52.zip Filesize 1.1 GiB Identifier iPhone4,1
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