How to Use Apple Diagnostics on Mac to Identify & Troubleshoot Hardware Problems

Using Apple diagnostics on Mac, you can identify and troubleshoot hardware issues, affecting the performance of your computer. Head over to discover the issues killing your device:


Is your Mac plagued by some issues and you think that the problem could be related to hardware? Well, you can use Apple Diagnostics on your Mac to identify and troubleshoot the hardware issues.

Apple Diagnostics basically runs a number of in-depth tests on the Mac to identify hardware issues. For instance, it will help you find out if the rapid battery drain on the Mac is due to faulty battery. Read on to know how it works:

How to Use Apple Diagnostics on MacHow to Use Apple Diagnostics to Identify Hardware Problems on Mac

Apple Diagnostics was earlier known as Apple Hardware Test. If your Mac is from June 2013 or later, follow these steps to run diagnostics.

Step #1. First and foremost, you need to disconnect all the external devices from your Mac.

But keep keyboard, mouse, display, Ethernet connection as well as AC power.

Now, place your notebook on a flat surface with better ventilation.

Then shut down your laptop.

Step #2. You need to press the D key on the keyboard when turning on the computer.

Step #3. Release the D key, when you are prompted to select a language.

Then, you have to select a preferred language. Now, diagnostics will automatically take place.

Step #4. Next, you have to note down the reference codes, which you get once the diagnostics are complete.

Now, you will get the option to run the test again to have more information. To do so, click Restart button.

Step #5. Click Agree to send when in Recovery mode. Then, click Get Started.

Now, your reference codes and Mac’s serial number will be sent to Apple. Next, you have to follow the service and support instructions provided by Apple.

How to Use Apple Hardware Test on Older Macs (before June 2013)

Just in case your Mac is from before June 2013, you will need to use Apple Hardware Test, which requires almost the same steps to be followed.

Step #1. Follow the steps from 1 to 3. Once you have selected your language, click the right arrow.

Step #2. Now, click Test.

Note: You can click on the Stop button to stop the test.

Step #3. Next, you need to click Restart or Shut Down after checking out your results.

If the test has detected hardware issue, you will have to take your MacBook to Apple service center or an authorized service provider.

Wrap up:

I find Apple Diagnostics immensely user-friendly as it helps you in finding out the root cause of any problem. Let me know what you think of it in the comments below.

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