Hacking Right Trigger not working

[redeyez]

My right trigger isn't working...probably due to me dropping my ds numerous times in a drunken stupor.

I'm pretty profecient at soldering (not speleling as you can tell). Does anyone know how the buttons are interfaced with PCB b4 i dig in? Are there wires? Or is a contact?

Im assuming of course that something is lose and not an actual IC problem.

 

[Sticks]

It's just a button module soldered onto the PCB. the trigger 'pushes' a little black clicky button on the module.