My beat solo 3's right ear did not work while using Bluetooth but it did with an aux cable, I had tried everything but I did remember that this only occurred after the first time my headphones had run out of charge, I'm not sure if this will help anyone but all I did was turn them off, put them on charge for 2 seconds and then took out the charging cable and turned them on again. Worked for me, hope this helps someone else in My position who has tried everything