I connect my phone to android auto with bv9600 using original cables. After 5 minutes or so, the phone and the android auto locks up, screen freezes and nothing works

So it would be ok for me to take picture under water and record video. If I stay in shallow water?

So if I understand correctly, it is normal for the phone to go into headset mode after being submerge in water. So it is ok to submerge it in water to take underwater pictures.