Pixhawk Cube and Here 2 not recognized by computer

Hello everyone,

I just bought a new Pixhawk Cube & Here 2 as I needed a spare one. My other one is working perfectly fine with my computer but the new one is not recognized in QGroundControl or when I try to upload a new source code on it. I have tried on another computer running Linux (I personnaly run macOS) and it didn’t work either. Do I need to ask for an exchange or am I missing something ?

Thank you in advance