Download iOS 12.1.2 Build 16C104 IPSW Firmware Restore Files
Download the IPSW iOS 12.1.2 (Build 16C104) firmware file released at 20 December 2018 intended to restore iPhone 7 Plus (GSM) via iTunes. IPSW iOS 12.1.2 build 16C104 is unsigned by Apple to update Apple device software.