iMac (Two Ports, 24-inch, 2024) · Mac16,2

iMac (Two Ports, 24-inch, 2024) · macOS 15.1.1

24B2091Signed

Catalog data · Last updated: Oct 23, 2026, 7:36 PM UTC

Restore IPSW for iMac (Two Ports, 24-inch, 2024): macOS 15.1.1, build 24B2091.

Firmware information

Version: macOS 15.1.1
Build: 24B2091
IPSW: Mac restore IPSW, not a macOS installer
Size: 14.45 GB
Release date: Nov 19, 2024, 6:19 PM UTC
File name: UniversalMac_15.1.1_24B2091_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_15.1.1_24B2091_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-256dc51e18a3f9e4276d1773ea62cbc88cbe485571b45a20095197a627bb6d85d48

SHA-1f9c870544bc208d9574eb07d8226cd80a77e13e2

MD588bb110322d68715e901e2805888d186