Heated Display Removal Fixture Firmware Update
This article provides instructions on how to install the latest firmware for the following heated display removal (HDO) fixtures:
Heated Display Removal Fixture 1.0, gray top
Heated Display Removal Fixture 2.0, white top
Heated Display Removal Fixture 3.0, black top
If your HDO fixture has firmware version "HDO V26.0.0," you don't need to update it.
Materials
Ensure that you have:
Mac computer with Apple silicon (for host Mac)
An internet connection
macOS Tahoe or later
1 GB of free space on the host Mac
Apple Service Utility installed
USB-A to USB-B cable
Note: A USB-C to USB-A adapter can be used.
Prepare the host Mac
Disable antivirus software.
Disable the screen saver.
Ensure that the display doesn't turn off. Do this for both power adapter mode and battery mode, if applicable.
Enable Light Mode. Dark Mode and Auto Mode aren't supported by the firmware update software.
Unplug all external displays and devices. Only the power adapter, keyboard, mouse, and heated display removal fixture may be connected during the firmware update.
Open Apple Service Utility (ASU) and select Resources from the Window menu. Install the appropriate application for the HDO fixture you need to update.
For HDO fixtures 1.0 and 2.0:
Select Install to download Heated Display Removal Fixture Updater 1.0/2.0.
For HDO fixture 3.0:
Select Install to download Heated Display Removal Fixture Updater 3.0 (S or C).
Important
If you select Install and nothing happens, increase the size of the ASU Resources window and try again.
If Heated Display Removal Fixture Updater 1.0/2.0 or 3.0 doesn't appear in the ASU Resources list, attempt the following troubleshooting steps one at a time in the following order:
Select Check for Updates in the ASU Resources window.
Quit ASU and try again.
Reinstall ASU. Then reinstall the relevant Resources and try again.
Install the firmware update
Important
Unplug all external displays and devices from the host Mac. The power adapter can be connected to the host Mac during the firmware update.
Turn on the HDO fixture.
Connect the USB cable to the HDO fixture and the host Mac.
For HDO fixtures 1.0 and 2.0:
Open the Heated Display Removal Fixture Updater – M from the Applications folder. Then follow the onscreen instructions.
For HDO fixture 3.0:
The Heated Display Removal Fixture Updater application should open automatically after you connect the HDO fixture to the host Mac. If the application doesn't open automatically, identify the Manufacturer on the back of the HDO fixture. Then open the corresponding application version (-C or -S) for the HDO fixture you're updating.
CY: Heated Display Removal Fixture Updater - C
Secote: Heated Display Removal Fixture Updater - S
Important
The update will take 5 to 10 minutes to complete.
Don't turn off the HDO fixture or disconnect it from the host Mac while the update is in progress.
The Heated Display Removal Fixture Updater application on the host Mac may appear as not responding while the update is in progress. Wait for the countdown timer to complete.
When the HDO fixture screen shows "HDO V26.0.0," the firmware has been installed.
Disconnect the USB cable from the HDO fixture and the host Mac.
Turn off the HDO fixture. Then unplug the power cable from the HDO fixture.
Wait 20 seconds.
Plug the power cable into the HDO fixture. Then turn on the HDO fixture.
Confirm that the HDO fixture screen shows "HDO V26.0.0" in the bottom right corner.
Important
If you encounter an error on the host Mac, check the firmware version on the HDO fixture screen.
If the HDO fixture shows the latest firmware version, disregard the error and complete the power cycle steps above.
If the HDO fixture doesn't show the latest firmware version, continue to the troubleshooting steps below.
Troubleshooting
If the firmware update fails immediately, complete the following steps:
Click on View logs.
If "Unable to connect to boot loader" error is visible, leave the HDO fixture connected to the power and USB cables.
Click Start Update again.
Repeat these steps up to three times if the firmware update continues to fail immediately.
If the firmware update doesn't complete after these attempts, continue to the next step.
If the firmware update fails while in progress, complete the following steps:
Unplug the USB cable and power cable from the fixture.
Wait 5 seconds.
Plug the power cable into the fixture. Then plug in the USB cable into the fixture.
Relaunch the Heated Display Removal Fixture Updater app and click Start Update.
Repeat these steps up to two times if the firmware update continues to fail while in progress.
If the firmware update fails with the error "BAD CPU" in the logs, complete the following step:
Refer to instructions in Using Intel-based apps on a Mac with Apple silicon to manually install Rosetta, then attempt to update firmware again.
If you don't see HDO 3.0 in the resources pane in ASU, HDO 3.0 will open and connect automatically once plugged in. This may take a moment.
If you encounter any issues while installing the firmware update, contact the Self Service Repair Store team for assistance.