Clip not recognized at all

I got my RMA today so the Clip is on its way to Brno (Czech Republic…)

I had someone on the phone and explained the problem. They said to reset it the way you describe (holding it in on position). Didn’t work (I already tried that) After that, she asked if I could put the new firmware on it…

yeah… right… Like how? With a clip that goes black when connected and no sign of life whatsoever on the pc…?