Hi Outtellect,
Congratulations on your new iPhone 12 mini! We want you to have a great experience and are confident we can resolve the issue of your MacBook Pro not detecting your phone. It sounds like you've already done some troubleshooting on your own. To clarify, were you working through the steps in the resource below? If so, please let us know at what point the troubleshooting failed, and we'll isolate the problem from there.
If your computer doesn't recognize your iPhone, iPad, or iPod
Please note that if you have any third-party security software installed on your MacBook Pro, we'll want to make sure that's disabled for testing purposes.
Let us know what you find!