iMac 24-inch (M1, Two Ports, 2021)

macOS 26.3.1 (25D2128) for iMac 24-inch (M1, Two Ports, 2021)

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Firmware Information
Version 26.3.1
Build ID 25D2128
Release Date Mar 4, 2026
Upload Date Feb 27, 2026
Filename UniversalMac_26.3.1_25D2128_Restore.ipsw
File Size 18.00 GB
MD5 d928ee10bc9faccb8c88ab971c0a6d03
SHA1 d7fd6eded02a7534581e4bee5f25ba9784cce408
Device Information
Device iMac 24-inch (M1, Two Ports, 2021)
Identifier iMac21,1
BoardConfig J456AP
Platform t8103
CPID 33027
BDID 40