I had this phone oppo a78 4g 1 month ago my phone has fallen on water, when there is no electricity at home, at that time I hanged my phone on window. That has been fallen down on pot of water. I taken out fastly. But I faced speaker problem for few days. Now it's working good.
would be interesting to know if the phone started charging again? moisture in charging port can cause a charge failure and it appeared there was still moisture in the port...