I cleaned the gold colored contacts with an eraser and had to push the watch into it's charging station and gently shift it left, right, up and down all the while applying pressure with my thumbs. It hopefully will break thru any residue that is preventing connection. I was unable to tell if it worked but after massaging it for a minute or so, I latched the top cover down and let it charge all night. Surprisingly it worked. my next step was to replace the battery. Hope this helps. Good Luck