iOS 9.3.3 (13G21) for iPhone 6s ✗ This OTA is not signed. OTA firmwares cannot be restored to. IPSW Downloads collects them for
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Release Date June 6, 2016 Upload Date June 2, 2016 Filename 9b06d9459fef0e2b03cb51eb47af09254b077f59.zip Filesize 1.5 GiB Identifier iPhone8,1
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