new problem with cg2

[manwinder]

so i was having problems with my cg2 flex rapidfire mod. i reinstalled it with  optocoupler and now the bottom right led stays on, and the rapidfire isn`t working, i also by-accident chipped off a little tiny chip near c9(bottom left of the controller). i took a similar small chip from another controller (the chip was near c76, this is beside the left analog stick, it is on the right). i tried powering the flex without the optocoupler, it didn`t work, i removed the tact switch and put a new one in and it didn`t work