macOS 26.4 (25E246) for iMac 24-inch (M1, Two Ports, 2021)

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Firmware Information

Version 26.4

Build ID 25E246

Release Date Mar 24, 2026

Upload Date Mar 21, 2026

Filename UniversalMac_26.4_25E246_Restore.ipsw

File Size 18.38 GB

MD5 383fb9aca4dc5f271e675c77d43d0854

SHA1 177baf85518c6e9cebf83990e11e59259b5c97dd

Device Information

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

Identifier iMac21,1

BoardConfig J456AP

Platform t8103

CPID 33027

BDID 40