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How do I run a diagnostic on my Mac Mini?
Start Apple Diagnostics
- 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 (⌘)-D on your keyboard.
How do I troubleshoot my Mac Mini?
- Verify Connections. Although the Mac Mini may appear not to start, the problem may be with your monitor rather than with the Mac Mini itself.
- Power and Peripherals. Once you’ve verified that the Mac Mini is not powering up, check the computer’s power cable.
- Reset System Management Controller.
- Additional Information.
How do you diagnose Mac problems?
How to Run Apple Diagnostics on any Mac
- For those with iMacs or any desktop-based device: Disconnect all external drives and hardware devices, except for the keyboard, mouse, display, and speakers.
- Select Apple Menu > Restart.
- Press and hold the D key when the Mac is restarting.
- Apple Diagnostics will run automatically.
How do I revive my Mac Mini?
If reviving or restoring a Mac mini:
- Connect a monitor to your Mac mini (so you can see when the process is complete).
- Disconnect the Mac mini from power for at least 10 seconds.
- Press and hold the power button.
- Reconnect power while still holding the power button.
- Release the power button.
How do I reset a Mac 2020?
Shut down your Mac, then turn it on and immediately press and hold these four keys together: Option, Command, P and R. Release the keys after about 20 seconds. This clears user settings from the memory and restores certain security features that may have been altered.
Can I run a diagnostic test on my iPhone?
Phone Diagnostics for iPhone Available for the iPhone, the Phone Diagnostics app offers a range of tests you can run one after the other. The app can check your touch screen, multi-touch capabilities, camera, flash, speaker, microphone, Wi-Fi, cellular access, sensors, and other components.