I got a 3ds where one of the pads got completely broken off for the DC input jack. If you are looking at the pins on the board, and the wire plugs in behind the jack from your point of view, it is the 2nd pin from the left. This is a ground pin. The battery will not charge. Is there an alternate point I could jump a wire to? I see there are lots of places with continuity to ground, but there must be something special about that pin.