Moisture detected in charging port. Never been wet.

This phone is not too old. Bought it 6 months ago or so. Phones been wet once back when its new. But it was just a bit on the screen. I dropped it in snow. The port was covered too. Now after installing a update (Phone was plugged in while updating) that Samsung forces on you it immediately came saying the port was wet and refused to let phone charge. Ive let it sit overnight as it was around midnight then that happened. No change. Ive tried reboots,clearing cache,reset all settings and blowing in the port. Nothing. Occasionally the phone will charge. After pressing ok a billion times and a billion reboots. I really need help with this. This is my main phone and dont have money to buy a new one. Thanks!