How To Dry Water In Charger Port. Leave your iPhone in a dry area with some airflow. Leave your iPhone in a dry area with some airflow.

Clean again with isopropal alcohol let dry and when you think everything is clean. The last step would be to use a vacuum cleaner and dry vac to remove as much water as possible from the iPhone charging port. I work in a very dusty paper mill and Ill get a moisture warning when the charging port gets dirty.
Let the moisture dry out naturally.
But regardless whether you can see a trace of liquid or not try doing this very simple procedure to make sure the port is dry. Pat your phone gently dry with a cloth or microfiber towel. After at least 30 minutes try charging with a Lightning cable or connecting a Lightning accessory. This is a preventative measure added to avoid corrosion and you will still be able to charge with a wireless charger on supported devices.

