So I just noticed today at the gym that my left earbud is stuck at one volume (~70%) while my right earbud is able to be normally controlled with the side buttons and the built in touch control for volume control.
These are Bose sport earbuds. Fully charged both sides.
I would raise the volume and only the right earbud would go up, the left side stayed the same volume.
Same thing for when I lowered the volume to minimum: the left side would stay at the same volume while the right side went all the way down. The left side only “changes” volume when I put it all the way down to zero, in which case it mutes.
The balance on the phone and the app are +/- 0
Any help please? Google-fu hasn’t helped this time