Hi I've had a Z1 compact for nearly a year now and it's great. However today when I was out working listening to music through my headphones the phone started glitching it would without me pressing anything either drop the volume or raise it continually even after I locked it and reset the volume or it would activate the track ID app or voice commands. Sometimes it wouldn't let me even lock the device. I then tried my aux cable in my car with the sane results. Then headphones while watching YouTube videos with the only problem I am having there is that the video will stop playing and when I resume playing the volume comes out the device not the connect headset but then resolves itself a few seconds later. It is starting to become a frustration as I cannot listen to music or watch videos without constant interruptions now even after restarting the device.