I usually use something like this DKHelpingHand - Dritte Hand – Wikipedia
After the switch has been removed there are only 2 pins visible. I live in Germany so I'm not able help you further. If you find no one that "repairs" it, maybe its easier to find another one on ebay. Or you try it yourself. Remove the metal switch and apply some silver conductive paint. That should also work and you don't need to solder.
