Can I ask what exactly did the trick? I'm having the exact same issue. Put watch on charger overnight and in the morning it's only at 87%, it then fully charged when I resit the watch on the charger. I have the Samsung duo wireless charger.
I've been having the same problem and it seems related to fast charging from what i can tell. I bought that new dual charger where you can charge the phone and watch at the same time. It seems the watch only gets to about 87% and then stops. When i remove the watch and then put it back on, it does eventually get to 100% but the "finished_charging" light stays red - it never goes green.
I encountered a similiar issue when i used a fast charging dongle with the factory charger that came with the watch.
I think the Watch has issues with fast charging. I might have a defective watch so i'm going to get a different one and see if it has the same problems.
Sorry for the delay in posting my follow up.
I uncovered (I beleive) the root of the issue. I bought a protective case for the watch and I beleive, the watch was overheating during charging, and this stopped charging at some point. When I took the case off, I noticed the watch charges just fine. I've since decided to not use the case.
My charger is showing 100 percent and the led is green, but my samsung galaxy will not turn back on after trying all the various things request on this forum. Nothing works. Any help is apppreciated.
Hey, just wanted to follow up. Were you able to test out the troubleshooting steps provided?