16-May-2021, 11:15
Update: I opened the remote and cleaned the internal wheels, now it's working again 
I think there is a design flaw anyway: a small, metallic and perfectly smooth wheel rotates against a larger plastic wheel with a rubber o-ring. Even a thin layer of dirt or grease is enough to make it slide. I don't know whether it's made on purpose to avoid sudden volume increases in case one rotates the knob very quickly or simply an oversight.
It would be more functional if also the small wheel had a rubber o-ring around it.
Anyway it works now and in case it happens again it's just a 5 minutes work.
In case something similar happens to you, feel free to get in touch for guidance.
I think there is a design flaw anyway: a small, metallic and perfectly smooth wheel rotates against a larger plastic wheel with a rubber o-ring. Even a thin layer of dirt or grease is enough to make it slide. I don't know whether it's made on purpose to avoid sudden volume increases in case one rotates the knob very quickly or simply an oversight.
It would be more functional if also the small wheel had a rubber o-ring around it.
Anyway it works now and in case it happens again it's just a 5 minutes work.
In case something similar happens to you, feel free to get in touch for guidance.
