Download MacOS 12.1 Build 21C52 IPSW Firmware Restore Files
Download the IPSW MacOS 12.1 (Build 21C52) firmware file released at 13 December 2021 intended to restore iMac 24-inch (M1, Two Ports, 2021) via iTunes. IPSW MacOS 12.1 build 21C52 is signed by Apple to update Apple device software.
