How would you feel if your iMac Pro refuses to boot up during the macOS software update or does not functioning properly, which can occur in certain cases, you have to do a DFU-like restore process with the help of a secondary Mac and Apple Configurator.
The company instructs restoring an iMac Pro in the Apple Configurator.
They noted in the document that in the certain circumstances like a power failure during a macOS update, the iMac Pro could get unresponsive and need to be restored.
If you want to perform an iMac Pro restoration, you will need to meet the following requirements:
- Another Mac with macOS High Sierra and the internet connection
- Apple Configurator 2.6 or the newer version must be installed on your secondary Mac.
- USB-A or USB-C, or a Thunderbolt cable for the connection
Furthermore, you will have to configure your web proxy or firewall ports from your home router so that it can allow all network traffic on Apple devices to Apple’s network 126.96.36.199/8.
In case you use the USB-C cable, make sure that it supports both the power and transferring data.
Steps to restore a bricked iMac Pro
Simply perform the below steps to restore your bricked iMac Pro:
- First, open Apple Configurator on your other Mac and connect the USB or Thunderbolt cable to it
- Unplug your iMac Pro from the power.
- Plug your iMac Pro’s Thunderbolt port through the cable, which is closest to the Ethernet port.
NOTE: You need to use the specific Thunderbolt port.
- Now hold down the Power button of your iMac Pro while connecting the computer to power and continue holding it for around 3 seconds.
NOTE: That moment, you won’t see any activity on the screen from the iMac Pro.
- Open Apple Configurator 2on the secondary Mac device.
- Select the iBridge device in the app’s browser.
- Now, choose Restore from the Actions
- Just click on Restore and wait for the process. You may see an Apple logo appear and then disappear while restoring your iMac Pro.
- After the process is done, your iMac Pro will reboot, and you can access it again.
- Close Apple Configurator on the secondary Mac and disconnect the USB or Thunderbolt cable.
Also read: How To Stream Kodi To Chromecast From Android, PC and Mac
If the power is lost during the restoration of your iMac Pro, just reboot the second Mac and start the restoration process again following the instructions above.
Your iMac Pro will require a restoration if it’s bricked during the macOS upgrade.
If your Mac gets unresponsive or does not start up properly, your first step you should try is booting it up into Safe Mode. If not, boot your device into the Recovery Mode or Internet Recovery mode to check errors on your startup disks, restore from the Time Machine backup or even reinstall macOS from the scratch.