IPSW Downloads

macOS 12.3.1 - 21E258 for MacBook Pro

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

Release Date31 March 2022
Upload Date26 March 2022
File NameUniversalMac_12.3.1_21E258_Restore.ipsw
File Size12.92 GB
SHA256sumcb0443525571ea5e54aa5a8fd9c52774591892311405183741f4a02f993e18d5
MD5sum6c943a751207e9e06ab018a7bb568d40
SHA1sum81033c922c5d43f57907d063fb01865f4c856b37
IdentifierMacBookPro18,2

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your MacBook Pro to your PC.
  3. Open iTunes and navigate to your MacBook Pro.
  4. Hold the Shift key and click "Restore".
  5. Select the UniversalMac_12.3.1_21E258_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your MacBook Pro to reboot.

macOS

  1. Connect your MacBook Pro to your Mac.
  2. Navigate to your MacBook Pro in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the UniversalMac_12.3.1_21E258_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your MacBook Pro to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your MacBook Pro 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_12.3.1_21E258_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your MacBook Pro to reboot.