Download iPadOS 12.4 Build 16G77 IPSW Firmware Restore Files
Download the IPSW iPadOS 12.4 (Build 16G77) firmware file released at 22 July 2019 intended to restore iPad Air 3 (WiFi) via iTunes. IPSW iPadOS 12.4 build 16G77 is unsigned by Apple to update Apple device software.