Key broken on Model100

Dear everyone,

I have issues with my new Model 100. Sadly the key 3 does not work - I already switched the switches with no success. I’ve attached a photo of the board - does anyone have an idea on how to repair it? I thought about adding a dot of solder to the pin or to wrap alluminum foil around the legs.

Does anyone have an idea worth trying?

A similar thing happened to me. I turned the board over to the other side and re-soldered the connections for that particular key.