Download MacOS 11.4 Build 20F71 IPSW Firmware Restore Files
Download the IPSW MacOS 11.4 (Build 20F71) firmware file released at 24 May 2021 intended to restore iMac 24-inch (M1, Four Ports, 2021) via iTunes. IPSW MacOS 11.4 build 20F71 is signed by Apple to update Apple device software.
