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How to Use Mac Resource Inspector to Diagnose Your Mac
Mac Resource Inspector (MRI) is a software tool that Apple service personnel use to test and troubleshoot Mac hardware. MRI can check various components of your Mac, such as the battery, memory, display, and more. MRI can also suggest solutions and help you contact Apple Support for assistance.
However, MRI is not available for download by regular users. You can only use MRI if you take your Mac to an authorized service center or if you have access to Apple's internal network. If you want to run a diagnostic test on your Mac yourself, you can use Apple Diagnostics instead.
What is Apple Diagnostics?
Apple Diagnostics is a built-in tool that can test your Mac for hardware issues. Apple Diagnostics can run on any Mac with an Intel processor or Apple silicon. You can use Apple Diagnostics to test your Mac if you think it has a hardware problem or if it behaves unexpectedly.
How to Use Apple Diagnostics?
To use Apple Diagnostics, follow these steps:
Shut down your Mac.
Disconnect all external devices except keyboard, mouse, display, Ethernet connection (if applicable), and connection to AC power.
Make sure that your Mac is on a hard, flat, stable surface with good ventilation.
Determine whether you're using a Mac with Apple silicon or an Intel processor, then follow the appropriate steps:
Apple silicon: Turn on your Mac and continue to press and hold the power button as your Mac starts up. Release when you see the startup options window, which includes a gear icon labeled Options. Press Command (â)-D on your keyboard.
Intel processor: Turn on your Mac, then immediately press and hold the D key on your keyboard as your Mac starts up. Release when you see a progress bar or you're asked to choose a language.
Apple Diagnostics will show a progress bar while it's checking your Mac.
When testing is complete, Apple Diagnostics will show the results, including one or more reference codes. You can learn about Apple Diagnostics reference codes here.
To repeat the test, click âRun the test againâ or press Command-R.
To restart your Mac, click Restart or press R.
To shut down, click Shut Down or press S.
To get information about your service and support options, make sure that your Mac is connected to the internet, then click âGet startedâ or press Command-G. Your Mac will restart to a webpage with more information.
For more information about how to use Apple Diagnostics, you can visit this page.
What to Do If Apple Diagnostics Doesn't Work?
Sometimes, Apple Diagnostics may not work as expected. For example, you may not be able to start Apple Diagnostics with the D key, or you may see an error message during the test. Here are some possible solutions to try:
Press and hold Option-D at startup to use Apple Diagnostics over the internet. This may help if your Mac's firmware is outdated or corrupted.
Make sure that your Mac isn't using a firmware password. A firmware password can prevent you from starting Apple Diagnostics. You can learn how to set or remove a firmware password here.
Reset the NVRAM or PRAM on your Mac. NVRAM and PRAM store some settings that affect how your Mac starts up. You can learn how to reset them here.
Reset the SMC on your Mac. The SMC controls some hardware functions that may affect Apple Diagnostics. You can learn how to reset it here.
Contact Apple Support or take your Mac to an authorized service center. If none of the above solutions work, you may need professional help to diagnose and fix your Mac.
We hope this article has helped you learn how to use Mac Resource Inspector and Apple Diagnostics to test your Mac for hardware issues. If you have any questions or feedback, please let us know in the comments below. aa16f39245