new mac mini froze during software update

Hello MichaelSicilia,

To better understand where you're at in the update process, would you provide us with more information about what you currently see on the display that is connected to your Mac mini?

"When you're updating or upgrading macOS, the Apple logo or progress bar might persist for much longer than usual. As installation continues, the progress bar might move slowly and pause for long periods. Apple recommends starting installation in the evening—so that it can complete overnight, if needed."

If you Mac mini is still stuck, we recommend following the steps listed here: If your Mac starts up to an Apple logo or progress bar - Apple Support

1. "Press and hold the power button on your Mac for up to 10 seconds, until your Mac turns off.
2. Turn your Mac back on. 
3. If the issue persists, press and hold the power button until your Mac turns off. Then unplug all nonessential accessories from your Mac, including printers, drives, and USB hubs. You could have an issue with one or more of those devices or their cables. 
4. Turn your Mac back on.
5. If the issue persists, once again press and hold the power button until your Mac turns off. 
6. Repair your startup disk as described in How to repair a Mac disk with Disk Utility.
7. If the issue persists, reinstall macOS from macOS Recovery."

Let us know if you have any questions! Take care.