Left headphone is very quiet, I dont have a problem in my ears or the sound balancing. When I keep + or - sound pressed down

a29

Dec 1, 2018
3
0
10
Left headphone is very quiet, I dont have a problem in my ears or the sound balancing. When I keep + or - sound pressed down
 

a29

Dec 1, 2018
3
0
10
MERGED QUESTION
Question from a29 : "Left headphone barely works"

Left headphone is very quiet, I dont have a problem in my ears or the sound balancing. When I keep + or - sound pressed down