Problem getting Mac mini to work

The latest Mac mini models do not support using an iMac as a display in Target Display Mode.

carefully read > Use your iMac as a display with target display mode - Apple Support

You will need to connect an aftermarket external display to the Mac mini.

see > Connect a display to Mac mini - Apple Support

Paulneth Said:

"Problem getting Mac mini to work: Mac mini still not working after connecting to imac"

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There may have been a power spur. So, refer to the following...

Troubleshooting Mac Power:

A. Black Mac Screen:

Go Here: If your Mac doesn't Turn On or Start Up - Apple Support

Using External Devices: Try Resetting the SMC and NVRAM, but this time, using an external keyboard. Connect an external monitor and see if you get an output.

B. Mac Power Issues:

Try a New Charger:

If it is currently charging from a charger, then use a new charger:

• Power & Cables - Mac Accessories - Apple - Select "Mac Compatibility" on the left
• Find the right power adapter and cable for your Mac notebook - Apple Support

C. A Few Links to Refer to Power:

• If your Mac doesn't Turn On - Apple Support

• How to Turn your Mac On or Off - Apple Support

• About Mac Notebook Batteries - Apple Support

• Charge the MacBook Pro Battery - Apple Support

• If your Mac Battery won't Charge - Apple Support