I was listening to music via my headphones when all of a sudden, the volume decreased for seemingly no reason. Setting the volume up to 15 sounds more like having it at 6 rather than 15. I can't find a way to fix it at all, even third party apps aren't doing anything to fix it. The problem isn't the headphones as I tested numerous headphones in the phone and all of them had the problem. It isn't just Media either, since videos and apps all suffered. The device's sound functions normally with no headphones in, but putting headphones into the jack just makes everything really quiet. Any way to fix this simply?