March 24, 2025
Apple Firmware

iMac 24-inch (M4, 2-ports)
IPSW Download

Select an iMac 24-inch (M4, 2-ports) firmware version to download. These IPSW links are compatible with model identifier Mac16,2 and model number A3137.
15.3.1
SIGNED

macOS 15.3.1

SIGNED
UniversalMac_15.3.1_24D70_Restore.ipsw
Released: February 10, 2025
Build: 24D70
15.3
SIGNED

macOS 15.3

SIGNED
UniversalMac_15.3_24D60_Restore.ipsw
Released: January 27, 2025
Build: 24D60
15.2
SIGNED

macOS 15.2

SIGNED
UniversalMac_15.2_24C101_Restore.ipsw
Released: December 11, 2024
Build: 24C101
15.2
SIGNED

macOS 15.2

SIGNED
UniversalMac_15.2_24C2101_Restore.ipsw
Released: December 11, 2024
Build: 24C2101
15.1.1
SIGNED

macOS 15.1.1

SIGNED
UniversalMac_15.1.1_24B2091_Restore.ipsw
Released: November 19, 2024
Build: 24B2091
15.1
SIGNED

macOS 15.1

SIGNED
UniversalMac_15.1_24B2083_Restore.ipsw
Released: October 31, 2024
Build: 24B2083