IPSW Downloads

macOS 11.5 - 20G71 for iMac

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

Release Date21 July 2021
Upload Date16 July 2021
File NameUniversalMac_11.5_20G71_Restore.ipsw
File Size13.01 GB
SHA256sum7f926ba7f6e536cb0a09ac7dc4ab1faf174ddb4d5344c6135aca23e75a38800a
MD5sum90775fd2bcfe7e70ef0ee0bbe2d8bf92
SHA1sum9ab736e121472c64f8550597c77ca6077170463d
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_20G71_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_20G71_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_20G71_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iMac to reboot.