IPSW Downloads

macOS 11.5.1 - 20G80 for iMac

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

Release Date26 July 2021
Upload Date21 July 2021
File NameUniversalMac_11.5.1_20G80_Restore.ipsw
File Size13.01 GB
SHA256sumfff098d7aef8c0003de27d889179f73e810db935c3cc60ba821367214f751ece
MD5sumca48d5c5ad8684e0a3e74639f900236a
SHA1sumc509056720fa190fda61c78b1b67ad42853228b5
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_11.5.1_20G80_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_11.5.1_20G80_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_11.5.1_20G80_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iMac to reboot.