MacBook Pro (M1 Max, 16-inch, 2021) · MacBookPro18,2

MacBook Pro (M1 Max, 16-inch, 2021) · macOS 13.3

22E252Signed

Catalog data · Last updated: Oct 22, 2026, 2:00 PM UTC

Restore IPSW for MacBook Pro (M1 Max, 16-inch, 2021): macOS 13.3, build 22E252.

Firmware information

Version: macOS 13.3
Build: 22E252
IPSW: Mac restore IPSW, not a macOS installer
Size: 11.85 GB
Release date: Mar 27, 2023, 5:24 PM UTC
File name: UniversalMac_13.3_22E252_Restore.ipsw
Download host: updates.cdn-apple.com

IPSW download

Check the model and signing status before downloading.

Download IPSW

Download hostupdates.cdn-apple.comUniversalMac_13.3_22E252_Restore.ipsw

Back up before you restore. A restore can erase the data on the device. The identifier has to match, and a file you can download may still be rejected for restore. This is Mac restore firmware, not a regular macOS installer. The restore steps depend on the model.

Checksum

SHA-25691fe1d55843925f242b4a94ce1069073f9a22f22a40eb77a5618b877e0ec9f24

SHA-1c870a2350464d8b7b61354ea9211155c1b4f2f14

MD5b849f918e5ecca8881a41fd646acaf5b