Developer Transition Kit · ADP3,2

Developer Transition Kit · macOS 11.2

20D64Signed

Catalog data · Last updated: Oct 21, 2026, 11:42 PM UTC

Restore IPSW for Developer Transition Kit: macOS 11.2, build 20D64.

Firmware information

Version: macOS 11.2
Build: 20D64
IPSW: Mac restore IPSW, not a macOS installer
Size: 12.76 GB
Release date: Feb 1, 2021, 6:38 PM UTC
File name: UniversalMac_11.2_20D64_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_11.2_20D64_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-2563ab9f564ef66a63ce6b7bad872cc008779d6c95757b2c077a4b48a65cf3f637f

SHA-17315f657df2a14b838b9d51eb49cdfff5be090e7

MD5646f8ab165d07e309987f6db3381c0d2