test the continuity (Multimeter) on those solder points. Press the button to see which 2 of those are CLOSING (Shorting) and that would be the 2 point you need to solder a wire.
From the pic, I can't tell if those 4 points are to secure the pad.
I did one of this on a Laptop, it is really easy to do. Just need to get yourself a meter and test the continuity to see which of the 2 points you neeed to wire up.