Download iOS 9.2.1 Build 13D15 IPSW Firmware Restore Files
Download the IPSW iOS 9.2.1 (Build 13D15) firmware file released at 19 January 2016 intended to restore iPhone 5c (GSM) via iTunes. IPSW iOS 9.2.1 build 13D15 is unsigned by Apple to update Apple device software.