Do I need to receive any permission to fly in Copenhagen my important Mavic Mini? And is there any fee for flying without permission?
I know there is a lot of spot with "High-security level" but I couldn't find any useful info related to MavicMini. Thanks for the help.

There might be some useful information here: https://uavcoach.com/drone-laws-in-denmark/

And here: https://www.droneluftrum.dk

Denmark has the 250g rule so you should be OK as long as you don't fly with the prop guards.

Hi, thank you for reaching out. I will highly recommend coordinating this concern to your local aviation authority for further details. Also, hope that you could get the best recommendation from our valued DJI members here in Forum that currently located in Denmark. Thank you for your continued support!