IPSW Downloads

macOS 12.6 - 21G115 for iMac

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

Release Date12 September 2022
Upload Date01 September 2022
File NameUniversalMac_12.6_21G115_Restore.ipsw
File Size13.11 GB
SHA256sum5113f8d3c77fd725ea6357ced5764bc57183d2d388492c58c46ff2729d0658e5
MD5sume60dce4e98cbe3501ce9b9d5eef354d0
SHA1sum3bae26d997c8ad246bb6ca4bd85bb8498f0680e9
IdentifieriMac21,2

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_12.6_21G115_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_12.6_21G115_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_12.6_21G115_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iMac to reboot.