Ipad Air 3 volume raising by itself
My Ipad Air 3's (bought in January 2020) volume keeps increasing all by itself. When I try to get it back to the desired level (either with buttons or the virtual volume bar) it goes back up to max, as though the Up-volume button were constantly pressed.
I can sometimes get it back to where I want if I reboot my iPad, but the problem starts again as soon as I start playing any media - youtube, zoom, and even videos on Safari and Chrome. If I reboot the ipad, adjust the volume and do not play any media, the volume stays where I left it.
What could be wrong and how could I fix it?
I have never dropped or damaged the ipad. I already tried: removing the case, wiping the buttons, rebooting, removing and reinstalling apps, turning off Bluetooth, removing all bluetooth devices, and my iOS is always up-to-date.
iPad Air, iPadOS 13