Download MacOS 12.3 Build 21E230 IPSW Firmware Restore Files
Download the IPSW MacOS 12.3 (Build 21E230) firmware file released at 14 March 2022 intended to restore iMac 24-inch (M1, Four Ports, 2021) via iTunes. IPSW MacOS 12.3 build 21E230 is signed by Apple to update Apple device software.
