'''Use Android System Recovery Option to bypass Moisture detected at 0% charge.'''
When phone is at 0% and it shuts down, the moisture detected error doesn’t let the phone charge even if left plugged in for hours. The screen shows 0% always.
However, the phone charges if it can be turned on till home screen. So I tried a method and it worked for me:
1. Let the charger be plugged in the phone.
2. Press & hold these buttons together: power + volume up + Bixby
3. Android logo will be displayed. Installing system update will show.
4. Press the volume down key several times to enter android system recovery option screen.
5. '''When you arrive at recovery option screen, Leave it as it is''' '''for 10 to 15 minutes'''. The phone will charge to 5 to 10%.
6. Select "reboot system now" (use volume up/down button|) and press the power button.
The phone will restart and you will see the full screen and charge %.
From there on you can keep charging without the annoying message.