I experience this one today. I use my phone on taking photos while I'm in the pool. At first, the phone only detected that there is a moisture inside my port. Until I decided to used a hair blower to get rid of it. And then, there is no longer notification. Afterwards, I charged my phone. A few minutes later, an indication of moisture detected. And so I detached the my phone to charging cable. Then, I use my phone to take photos again.
But then, when I turned it on, there is a sign of damaged lines like there is a darker lines and normal lines. And I thought this won't last. Then, I took pictures only in front camera since there is a sign of moisture inside the back camera. And so this suddenly happens..
After taking photos, I do edit pictures through phone. And suddenly, with a 26% battery, my phone blacks out. ??..I started to panic since I've tried all the solutions I have searched in the internet.
And I finally, decided to open the phone trying to fix it myself since I can't afford to pay repair for this in the service center. I found some areas wet. And I tried to open it using the Power On + Volume down. But still nothing works after cleaning. (I didn't do unscrew anything).
The last thing I did today was use an UV sanitizer that I bought in the midst of pandemic. I only put the phone that I opened at the back in the UV Sanitizer (for about 10-15s) and I use the solution I found on making it open ( Power On + Volume up for a 10s). And viola my phone is now working. I am so happy that I want to share to everyone what I did to fix my phone (S10e). Hope it works for you also. I think UV devices can help dry the moisture inside the phone. Feedback me at firstname.lastname@example.org