I had this problem but i solve it you can try to open your case and place you left bud to the right socket about few second and take out and try and see whether it works .
Im experiencing the same issue. Was just listening to music yesterday and my right headphonr went real low and hasnt been right since i have tried to reset repair and everything this is crazy
Yep, I have the same issue on the right earbud only. I've tried everything in the troubleshooting on this page. It happened suddenly about a few weeks ago. I've even tried unpairing and pairing them again but nothing works.
I've been trying all the fixes in this thread and I'm still having the same issue. Right earbud is very low volume, left ear is great. Seems to have happened after the latest software update, maybe?