Atreus no more responsive at all?

Hi all,

I am a SUPER happy user of both a model 100 for home and an Atreus when moving. My Atreus suddenly stopped to work this morning. I investigated the issue, and dmesg doesn’t show anything when I plug / unplug the keyboard (cable and my UBS port are ok for sure since the Model 100 is working perfectly with them).

I tried to boot the Atreus in recovery mode by pressing the bottom left key while plugging in the keyboard, same, nothing is seen by dmesg

What can/should I do ?

Thank you very much for your help.