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 MacBook Air (M1, Late 2020) via iTunes. IPSW MacOS 11.4 build 20F71 is signed by Apple to update Apple device software.
