macOS 26.1 (25B78) for iMac 24-inch (M1, Four Ports, 2021)

Device Information

Identifier

iMac21,2
BoardConfig

J457AP
Platform

t8103
BDID

42
CPID

33027

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Download (17.43 GB)

Firmware Information

Release Date

4th November 2025
Upload Date

30th October 2025
Filename

UniversalMac_26.1_25B78_Restore.ipsw
Filesize

17.43 GB
MD5sum

e270ede6a1eba02253ac42bcd76dab4b
SHA1sum

479d6bb78f069062ca016d496fd50804b673e815
Identifier

iMac21,2