My Sony Xperia Z5 dual doesn't stop vibrating. It all happened 4 months ago I used it in a fresh water for around 15 minutes at a deprh of 1 feet only. At First it just vibrated so I turned it off and when I got home. The vibrating didn't stop so i left it for 5 hours to dry out and for the battery to die then i tried turning it on and the low battery sign appear. So I plugged in the charger and after a while it started ti vibrate again and the phone is alive. Then I left it charging. Then when we we're heading out to our province I was still able to use it while charging. But it easily when i plugged it out from the power bank. So I just left it dead and didn't bother turning it on until yesterday my friend tried charging it and yet the vibration wasn't gone but phone in fine now I'm using it even typing this topic. And now I'm thinking maybe there is still a few water left inside so maybe i need to open it. My only concern how do I stop the vibration. I even tried hard reset. Thanks.