Download iOS 11.1.2 Build 15B202 IPSW Firmware Restore Files
Download the IPSW iOS 11.1.2 (Build 15B202) firmware file released at 16 November 2017 intended to restore iPhone 5s (GSM) via iTunes. IPSW iOS 11.1.2 build 15B202 is unsigned by Apple to update Apple device software.