Waterdrop symbol won't go

[evans89]

Hi need advice how to clear the moisture detected symbol I've dried my phone out as much as I can and it still says moisture detected 

[TechnoLogical]

Try to restart the phone and if this doesn't work press the volume up and down and power button for 15 seconds until the samsung logo appears this takes to a hard restart

[KevP79]

Try going into

apps > show system apps > usb setting > storage (& clear cache)

restart the phone and see if it disappears.

Best of luck!

[Domesticated]

Have a look at this YouTube post and see if it works
https://youtu.be/lf3U3olvTwQ