Put a greasy battery in, then try firmly tapping on its underside with a screwdriver while it’s in the on position, then turn it on its side and leave it on and alone.
Come back later and revisit it and tap its underside again.
You could also try jump starting it with a 9 volt.
Come back later and revisit it and tap its underside again.
You could also try jump starting it with a 9 volt.
Play nice & have fun!!