The other posts didn't help much and didn't have my problem which I think is the problem. So a few days ago both sides of my headphones worked 100% on both sides. But today I have noticed that one side is 100% and the other is like 10% working. I tried the back connector and front connector still the same. I switched the headphones to the other ear, And no I am not deaf in one ear. I then tested on my phone and guess what. Yup you guessed it both sides even amount of sound. But it worked fine days before this. But I think it might be the recent Windows 10 update that just came out. I am not sure though. I also tested 2 different pairs and same results. I am confused. Also I have a Phanteks P400 Eclipse case and a MSI 970 Gaming AM3+ motherboard.