All of a sudden, with no prior problems, my Vivoactive 4S is refusing to charge. There is no "buzz", there is no logo -- no acknowledgment that I have plugged anything it. I left it all night and it was at 1% this morning. I've had a look at some similar problems -- I've tried cleaning the male and female connectors, I even have 2 different charging cables, neither of which work.
I left it all night to charge in case it was a display problem (at around 7% last night) and it was at 1% this morning. I have tried plugging it into a computer and holding down top button, but that made it vibrate enough to lose all charge.
I have not done anything differently to my watch recently... It's not even come off my wrist since last charge.
Any ideas?