Quote Originally Posted by Cane Pole View Post
Clean with a tooth brush and tooth paste. Then rinse with water. Let dry. Take a toothpick and apply a very small amount of dielectric grease inside the matching female connector.

If possible, clean gold pins with rubber eraser (such as on lead pencils).

Don't put too much dielectric on the connector as it is conductive.

Some manuf don't recommend dielectric on connectors but the are the ones who are selling us the cheap connectors.
I know about the eraser trick but kind of hard getting into those small female pins, I use it on male pins, was hoping for some kind of spray on prevention maybe.