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

MacBook Pro (M1 Max, 16-inch, 2021) · macOS 14.1.1

23B81Signed

Catalog data · Last updated: Oct 21, 2026, 11:57 PM UTC

Restore IPSW for MacBook Pro (M1 Max, 16-inch, 2021): macOS 14.1.1, build 23B81.

Firmware information

Version: macOS 14.1.1
Build: 23B81
IPSW: Mac restore IPSW, not a macOS installer
Size: 13.02 GB
Release date: Nov 7, 2023, 9:43 PM UTC
File name: UniversalMac_14.1.1_23B81_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_14.1.1_23B81_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-256f7fd50227bafe10d171deeb4919bf550585bcae7ef2924235c0d62846b83d99a

SHA-1280d881272cedfb0793656b2b4b9198b16c17278

MD5157082fc4df09e6b12dfea067984bdd7