IPSW Downloads

macOS 11.2.3 - 20D91 for MacBook Air

This firmware is signed. This means that you can restore to it in iTunes.

Release Date08 March 2021
Upload Date03 March 2021
File NameUniversalMac_11.2.3_20D91_Restore.ipsw
File Size12.77 GB
SHA256sum3873efdc08c71af06b8d5ad1d2fda0d509746cc29e568e90732ccbe614af5a9f
MD5sum21c98b937bce0285abde8b39d1069409
SHA1sum47409e45ec6d9b6a15d9a49563572914f222104e
IdentifierMacBookAir10,1

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your MacBook Air to your PC.
  3. Open iTunes and navigate to your MacBook Air.
  4. Hold the Shift key and click "Restore".
  5. Select the UniversalMac_11.2.3_20D91_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your MacBook Air to reboot.

macOS

  1. Connect your MacBook Air to your Mac.
  2. Navigate to your MacBook Air in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the UniversalMac_11.2.3_20D91_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your MacBook Air to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your MacBook Air to your PC.
  3. Open a terminal and navigate to the IPSW file you downloaded, e.g., cd ~/Downloads.
  4. To perform a full erase restore, type idevicerestore -e UniversalMac_11.2.3_20D91_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your MacBook Air to reboot.