after getting wet it will not charge

Is the voltage regulator on the daughter board?

My S8+ indicated moisture when I plugged in the charging cable, the next day it did not but It will not take a charge. Even wirelessly. It was working fine, just not charging. Once the battery went down the phone will not power on. When charging now there is a circle with a lightning bolt on an otherwise blank screen, normally it has the percentage charge also. last percentage charge I saw was 0%.So I think it is the voltage regulator that is fried. If it is on the daughter board I can pillage one from another Google Locked phone and fix mine.

You think this will work?