Download iOS 11.2.6 Build 15D100 IPSW Firmware Restore Files
Download the IPSW iOS 11.2.6 (Build 15D100) firmware file released at 19 February 2018 intended to restore iPhone 5s (GSM) via iTunes. IPSW iOS 11.2.6 build 15D100 is unsigned by Apple to update Apple device software.