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

MacBook Pro (M1 Max, 16-inch, 2021) · macOS 26.4.1

25E253Signed

Catalog data · Last updated: Oct 23, 2026, 4:48 AM UTC

Restore IPSW for MacBook Pro (M1 Max, 16-inch, 2021): macOS 26.4.1, build 25E253.

Firmware information

Version: macOS 26.4.1
Build: 25E253
IPSW: Mac restore IPSW, not a macOS installer
Size: 18.38 GB
Release date: Apr 9, 2026, 5:35 PM UTC
File name: UniversalMac_26.4.1_25E253_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_26.4.1_25E253_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-2568aa7f7aea6b20d1839d85a0017c9a1472f26c63ad496919f85db988eb01a5c32

SHA-103078f4af82bff5473398ca49f99288c76253fe8

MD53b7a661ca701ad50b80ae62cbf2e41e3