How to Use Apple Diagnostics to Troubleshoot Your Mac

On your Mac, choose Apple menu > Restart, then press and hold the D key while your Mac restarts. Keep holding the D key until the screen listing different languages appears. Select a language. Apple Diagnostics starts automatically.

1. How do I run Apple diagnostics on my Mac?
2. How do I run an Apple Diagnostics test?
3. How do I check the condition of my MacBook?
4. How do I fix a Mac startup problem?
5. How do I run a diagnostic on m1 Mac?
6. How long does Apple Diagnostics take?
7. How do I run a WIFI diagnostic on my Mac?
8. Is Apple Diagnostic reliable?
9. How do you check RAM on a Mac?
10. How do you know if Apple products are authentic?
11. How many hours has my Mac been used?
12. How do I force my Mac into recovery mode?
13. Why is my Mac stuck on the startup screen?
14. How long should it take a Mac to startup?

How do I run Apple diagnostics on my Mac?

Press the power button on your Mac and then immediately press and hold down the D key on the keyboard. (To start Apple Diagnostics over the internet, hold down Option-D.) Release the D key when the prompt appears on the screen asking you to choose your language using the arrow keys.

How do I run an Apple Diagnostics test?

Start Apple Diagnostics

1. Turn on your Mac and continue to press and hold the power button as your Mac starts up.
2. Release when you see the startup options window, which includes a gear icon labeled Options.
3. Press Command (⌘)-D on your keyboard.

How do I check the condition of my MacBook?

To check whether the MacBook is original or not, visit Apple's 'Check Coverage' website. Apple has a dedicated website to check the authenticity of its products. Visit the official https://checkcoverage.apple.com page. Enter the serial number and check the validity of the purchase date along with other details.

How do I fix a Mac startup problem?

On a Mac laptop:

1. Shut down the MacBook.
2. Unplug and then reconnect the power cable.
3. Press Shift + Ctrl + Option/Alt keys and the power button at the same time.
4. Now release all those keys and the power button at the same time.
5. You may see the light on the power cable flicker.
6. Restart your MacBook.

How do I run a diagnostic on m1 Mac?

Once you're in the Startup Manager screen, press and hold Command-D to reboot the Mac into the Diagnostics Loader app. You can choose to run the diagnostics offline or to share the information with Apple. After you pick one, the diagnostics run right away and report back when they're done.

How long does Apple Diagnostics take?

Instead you would need to run Apple Diagnostics. Typically, the test takes under 5 minutes to run.

How do I run a WIFI diagnostic on my Mac?

Use Wireless Diagnostics on your Mac

1. On your Mac, quit all open apps.
2. Try to join the Wi-Fi network you're having problems with (if you're not already connected).
3. Press and hold the Option key, click the Wi-Fi status icon in the menu bar, then choose Open Wireless Diagnostics.
4. Follow the onscreen instructions to analyze your network connection.

Is Apple Diagnostic reliable?

Apple Geniuses reportedly have a more powerful diagnostic tool. Hardware test is reliable except for RAM test which often doesn't detect marginal RAM. Basically if it reports bad RAM it is but often fails to detect RAM that is inconsistent. The diagnostic test check out the basic subsystems - CPU, graphics, I/O etc.

How do you check RAM on a Mac?

This is easy to do: Click on the Apple symbol in the top left corner of your screen. Then select About This Mac from the menu that appears. In the box that appears you'll see various details, including the installed version of macOS, model name, and the amount of Memory, which is another name for RAM.

How do you know if Apple products are authentic?

Depending on the product, you can find your serial number:

1. On the surface of your product.
2. On a Mac, by choosing About This Mac from the Apple menu.
3. On an iPhone, iPad, iPod touch, iPod, or Apple Watch, in Settings > General > About.
4. In the Finder or iTunes, if your product syncs with your computer.

How many hours has my Mac been used?

Apple button top left -> About this mac -> System Report -> Hardware -> Power. You can see the # of cycles (which corresponds to the #of times you spent 100% of your mac battery) and battery health.

How do I force my Mac into recovery mode?

How to start Mac in Recovery Mode

1. Click on Apple logo at the top left of the screen.
2. Select Restart.
3. Immediately hold down the Command and R keys until you see an Apple logo or spinning globe. ...
4. Eventually your Mac will show the Recovery Mode Utilities window with the following options:

Why is my Mac stuck on the startup screen?

If your Mac with Apple silicon is stuck on this screen, please contact Apple Support. ... If the issue persists, turn off your Mac again, then turn it back on and immediately press and hold Command (⌘) and R to start up from macOS Recovery. While in macOS Recovery, use Disk Utility to repair your startup disk.

How long should it take a Mac to startup?

Typically, you Mac should take about 30 seconds to fully startup.