iOS 9.3 (13E5225a) 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 March 1, 2016 Upload Date February 27, 2016 Filename af538801ab1dd5228717745e39ef1f6f6acee103.zip Filesize 1.4 GiB Identifier iPhone6,1
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