Mac Studio (M1 Ultra) · Mac13,2

Mac Studio (M1 Ultra) · macOS 26.5.1

25F80Signed

Catalog data · Last updated: Oct 22, 2026, 9:31 PM UTC

Restore IPSW for Mac Studio (M1 Ultra): macOS 26.5.1, build 25F80.

Firmware information

Version: macOS 26.5.1
Build: 25F80
IPSW: Mac restore IPSW, not a macOS installer
Size: 18.41 GB
Release date: Jun 1, 2026, 5:22 PM UTC
File name: UniversalMac_26.5.1_25F80_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_26.5.1_25F80_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-25683f53dc7f9cce465ba88dd487bda74ce60c5582fcd45251eeeb9aea7f5a72f4d

SHA-1fee18c64537aaeb934e55b9578e5cddcc2c9218a

MD585e9cf6b84cbfa7bee108f46ec70269d