Hard to explain without a pic but i'll try, Flex the blade in the opposite direction of the glass. This opens the hole slightly where the pin goes in, You'll need to pry in the pin area. Once you get it off you'll see a grove in the pin where the spring rests. You are trying to open up the spring by flexing the blade backward. There is a round spring around the hole in the blade itself. You almost need 3 hands to do it. Hope this helps.