MacBook Pro (M1, Late 2020) · MacBookPro17,1

MacBook Pro (M1, Late 2020) · macOS 11.5.1

20G80Signed

Catalog data · Last updated: Oct 23, 2026, 7:49 AM UTC

Restore IPSW for MacBook Pro (M1, Late 2020): macOS 11.5.1, build 20G80.

Firmware information

Version: macOS 11.5.1
Build: 20G80
IPSW: Mac restore IPSW, not a macOS installer
Size: 13.01 GB
Release date: Jul 26, 2021, 5:20 PM UTC
File name: UniversalMac_11.5.1_20G80_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_11.5.1_20G80_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-256fff098d7aef8c0003de27d889179f73e810db935c3cc60ba821367214f751ece

SHA-1c509056720fa190fda61c78b1b67ad42853228b5

MD5ca48d5c5ad8684e0a3e74639f900236a