Got it in my head to take a picture in the rain with a key one phone ,the end result being the volume slider going from no volume to full volume by its self,eventually the volume switch was replaced ,so phone now stays at desired volume level,also the silent mode button would stay on when the volume was losing its mind,cost about $20 for switch,$30 to install in phone,also would not be able to shut phone off or restart as volume button appears to interconnected with power button,would suggest backing up ,taking to a tech and see if the phone powers down,(eg reboot)and that phone is not in do not disturb mode,hope this helps
08-11-19 01:51 PM