Developer Transition Kit

macOS 11.2.2 (20D80) for Developer Transition Kit

Signed — can be installed Released Feb 25, 2021 ADP3,2

Download IPSW

UniversalMac_11.2.2_20D80_Restore.ipsw

12.76 GB
Download macOS 11.2.2

The file is downloaded directly from Apple’s servers (updates.cdn-apple.com). Large files download faster with a download manager or curl -O.

Verify the file

SHA256
62650fe071330a8fcfa7f4d0030692d7b005fdadb1891b1ec6e6658bd2cdb978
SHA1
527d331410e16cd8388f05cf3b4443679e965ee6
MD5
45233fafc715dd498897cc16267340cd

On a Mac: shasum -a 256 UniversalMac_11.2.2_20D80_Restore.ipsw · On Windows: certutil -hashfile UniversalMac_11.2.2_20D80_Restore.ipsw SHA256

Firmware details

Version
macOS 11.2.2
Build
20D80
Released
February 25, 2021
Uploaded
February 22, 2021
File size
12.76 GB (13,699,802,104 bytes)
Signing
Signed

Device

Identifier
ADP3,2
Board
J273aAP
Platform
t8027
CPID
0x8027
BDID
0x42

How to install macOS 11.2.2 with this IPSW

  1. Back up your Developer Transition Kit to iCloud or your computer — restoring erases the device.
  2. Turn off Find My in Settings → [your name] → Find My.
  3. Connect the device with a cable and open Finder (macOS Catalina or later) or Apple Devices / iTunes (Windows).
  4. Hold Option (Mac) or Shift (Windows) and click Restore. Choose UniversalMac_11.2.2_20D80_Restore.ipsw.
  5. Wait — the device restarts several times. Don’t disconnect it until you see the Hello screen.

Stuck on the Apple logo? Put the device into recovery mode first, then restore.

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