Apple Studio Display: Apple Diagnostics for Self Service Repair

To help isolate the cause of an issue on a Studio Display that you’re troubleshooting, you may be prompted to use Apple Diagnostics for Self Service Repair test suites. Running these test suites can help isolate issues, investigate whether a part needs to be replaced, or verify that a repair has been successfully completed.

To access the test suites, you'll need a Mac and internet access. The Mac serves as a diagnostic console, where you’ll enter the serial number of the device that you’re servicing.

You’ll select the recommended diagnostic test suite, which will show the test results on the diagnostic console. Examine the results to help isolate the cause of a Studio Display issue.

How to run Apple Diagnostics for Self Service Repair

Requirements

To test an Apple Studio Display, you'll need:

  • An Apple Studio Display that can turn on and show an image. If the display doesn't turn on, or it shows a message that it's in recovery mode, or it shows an ellipsis icon instead of a normal image, follow troubleshooting for power and startup issues.

  • A Mac to access the Apple Diagnostics for Self Service Repair website and diagnostic console, and also to run Apple Service Utility. The diagnostic console and Apple Service Utility require macOS Sonoma 14.1 or later with Safari.

  • The latest version of Apple Service Utility with Studio Display resources installed.

  • A Wi-Fi or wired internet connection on the Mac

  • A compatible Thunderbolt cable

  • USB-C charge cable

Note: Learn how to initiate the System Configuration process at support.apple.com/self-service-repair.

Prepare the Studio Display

  • Ensure that the display is upright on a hard, flat, stable surface with good ventilation.

  • Unplug all connected accessories and USB-C cables from the display.

  • Connect the display to an electrical outlet.

Enter diagnostics mode

  1. On the Mac, download Apple Service Utility. Open the installer package and install Apple Service Utility.

  2. Open Apple Service Utility and check the main window to confirm that the app is running.

    Apple Service Utility main window

  3. If the Apple Service Utility Resources window shows that Studio Display resources are not installed, click Install to install the additional resources. During installation, a disk image containing resources will mount and dismount, and may appear on the desktop.

    ASU Resources Studio Display not installedASU Resources Studio Display installingASU Resources Studio Display installed

  4. Follow the instructions in the main app window to connect the display and Mac with the Thunderbolt cable.

    • Note: You can connect only one Studio Display at a time to the Mac when you run diagnostic suites.

      Studio Display connect to host Mac

  5. In the Apple Service Utility main window, confirm that the Studio Display is connected to the Mac. The app window will show the Studio Display and its serial number. The status message “Waiting for a diagnostic session to be created…” indicates that no diagnostic session has been created. When you start a diagnostic session, the status changes to “Ready to run diagnostics…”. These items will appear only when the display is successfully connected.

    Apple Service Utility waiting for diagnostic sesssion screenApple Service Utility ready to run diagnostics screen

  6. When you're using diagnostics, keep Apple Service Utility running in the background. The app window will show the status of the connection before, during, and after running a diagnostic suite.

    Apple Service Utility running diagnostics
Apple Service Utility completed diagnostics

Start Apple Diagnostics for Self Service Repair on the Mac

  1. On the Mac, go to https://getsupport.apple.com/self-service-diagnostics.

  2. On the Apple Diagnostics for Self Service Repair page, click Continue.

  3. Choose Studio Display.

Enroll in and start a diagnostic session

  1. On the Apple Diagnostics for Self Service Repair page, enter the serial number of the Studio Display that you're testing.

    • Note: You can find the display’s serial number in the Apple Service Utility window next to the icon of the connected display.

  2. Click Start Session. If the display doesn't enroll in a diagnostic session, click Try again.

  3. After you successfully enroll the Studio Display, select a diagnostic test suite.

  4. Follow the instructions and view the diagnostic test results on the Mac.

Available diagnostic test suites

Note: Studio Display diagnostic suites require a compatible Thunderbolt cable and Apple Service Utility running on a Mac that's compatible with Studio Display.

Display Resource Inspector (DRI)

This diagnostic suite is an initial quick triage tool that checks Studio Display for the presence of USB interfaces and cameras, and tests the functionality of the speakers, microphones, and camera.

Display Anomalies

This interactive diagnostic suite displays a series of colors and patterns that assist in identifying pixel anomalies and debris. This suite isn’t used for graphics anomalies or issues related to no video.

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