How To Get Moisture Out Of Charging Port S8. If yes remove the dust carefully with one of the following options. AND MANY OTHER PHONES.

Assuming you can see some traces of liquid in it you can also speed things up and get a small piece of tissue paper and insert it into the port. Use a wooden toothpick to clean the smartphones USB Type C port. Well done Samsung in that one.
Doing so will rule out the possibility of a damaged USB port.
I let my phone install a minor security update 4-5 days ago not sure if that had anything to do with it. And come running when the charger port reports moisture in the port. - Samsung Galaxy S9 Plus. To avoid this from happening Samsung has included a moisture sensor on the S8 and Note 8s USB-C port.

