Along with cleaning the connectors, try this.
With the watch not connected, hold three buttons down (light, down and start buttons) for 15-20 seconds and try charging again.
I just finished chatting with Erica from Garmin Support Centre. The chat took less than 10 minutes and resulted in them sending me a refurbished watch, and I'll send in the defective one when I receive…
Mine wouldn't charge at ALL. I did your trick thinking it wouldn't work as there was no power left but it worked. Thank you!
Thanks for this - you saved me!
Thank you so much!! It worked on mine too!! I was about to contact Garmin and send it to repair and took my old spare smart watch out already.
Thanks! It worked.
Works! Thanks.
Awesome thank you so much, this fix the problem. I thought I was gonna have to buy another garmin
Excellent recommendation. It worked great. Thank you
it worked! thanks!!
After trying everything, cleaning the contacts, pushing a combination of buttons, I used your description and voilà, it now works. Thank you for the help.
I think it depends on the aggressiveness of the sweat that corrodes the contacts. In my case, at each charge I have to rub the contacts with a cotton cloth strongly