Chosen Solution

N.B I don’t know/don’t have the tools to disassemble it. Edit:it’s now black and won’t respond

Leave the device turned off and try and shake out as much standing water that may be left inside as you can through any openings where it may have gotten inside. Try and blow any water away with canned air if available and then clean charging port area with 91% alcohol. This is about the best you can do without further disassembly. Hope this helps.