IPSW Downloads

macOS 11.4 - 20F71 for iMac

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

Release Date24 May 2021
Upload Date12 May 2021
File NameUniversalMac_11.4_20F71_Restore.ipsw
File Size12.97 GB
SHA256sumbb92e1404a69d139653354f3ed7554aca2d9aa568a003b8db15f40a9433f3356
MD5sumde3d7f7fc64c5e41800b4a2d9dcadfa6
SHA1sumb46f3a411413078c5235f888971faaafd371091e
IdentifieriMac21,1

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iMac to your PC.
  3. Open iTunes and navigate to your iMac.
  4. Hold the Shift key and click "Restore".
  5. Select the UniversalMac_11.4_20F71_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iMac to reboot.

macOS

  1. Connect your iMac to your Mac.
  2. Navigate to your iMac in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the UniversalMac_11.4_20F71_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iMac to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your iMac 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_11.4_20F71_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iMac to reboot.