I took my earbuds out this weekend the right bud is not working. I tried getting it to change, but got a green light. I did some internet searches and see that it could not be getting a good connection. I cleaned the connections and nothing. I uninstalled the wearable app and re-installed it. Still the same, I tried resetting the earbud and still the same. I shut down the phone and tried it all again; nothing. I tried to hold down on the working and then the non-working earbud in the case to reset, but I never get the blinking light; big HUH!! I figured I would wait till I get home and just use the wifes set of Galaxy +'s. I just attempted to hook them up and I'm getting the same thing out of them. The right bud too. I thought; well maybe it's my phone. I had a 3rd set of earbuds, a off brand, and they work perfectly.
Blue pair: Model SM-R175, Serial L: RFAN31MADTM; i can't get the right since it won't connect.
Red pair: Model SM-R175, Serial L: RFAN32BVYSK; Same for the right
Using a Galaxy S20+ phone too.