iOS 9.1 (13B5139) 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 October 12, 2015 Upload Date October 9, 2015 Filename 225212fa2091eddbae0b520370cece48386194dc.zip Filesize 1.4 GiB Identifier iPhone8,1
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