Studio Display Models Apple Diagnostics for Self Service Repair

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

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

You’ll select the recommended diagnostic test suite. When the diagnostic test has finished running, results will appear on the diagnostic console. Examine the results to help isolate the cause of the display issue.

Supported Apple displays

Apple Diagnostics for Self Service Repair suites are supported on the following Apple displays:

  • Studio Display

  • Studio Display (2026)

  • Studio Display XDR

How to run Apple Diagnostics for Self Service Repair

Requirements

To use Apple Diagnostics for Self Service Repair to test a supported Apple display, you'll need:

  • An Apple 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 with Apple Silicon to access the Apple Diagnostics for Self Service Repair website and diagnostic console, The Mac will also run Apple Service Utility. The diagnostic console and Apple Service Utility require macOS Tahoe 26.3 or later with Safari.

  • The latest version of Apple Service Utility with Apple 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 display you're testing

  • 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.

  3. If the Apple Service Utility Resources window shows that Apple Displays 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.

  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 supported Apple display at a time to the Mac when you run diagnostic test suites.

      Studio Display connect to host Mac

  5. In the Apple Service Utility main window, confirm that the display is connected to the Mac. The app window will show the connected display and its serial number. The status message Go to the Apple Diagnostics for Self Service Repair webpage to create a diagnostic session for this device 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.

  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 test suite.

Start Apple Diagnostics for Self Service Repair on the Mac

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

  2. Click Continue on the Apple Diagnostics for Self Service Repair page.

  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 display you're testing into the serial number entry field.

    • 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 display, select a diagnostic test suite.

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

Available diagnostic test suites

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

Display Resource Inspector (DRI)

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

Display Anomalies

This interactive diagnostic test 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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