I have the 2012 Madcatz MLG TE stick.
My RT wasn’t working, and since my warranty expired, I opened it up.
The problem is the terminal that you connect the button to the PCB (I’m not 100 percent sure that’s what it’s called) is not working. I swapped wires for the buttons and the button would work then but not the one I changed it out too. I also tried swapping the PCB ports and the RT buttons would then work but the RB button (which I moved the wire too) would not.
The wires on the buttons are working. Just not the PCB port for RT.
So, my problem is don’t know if the problem is the PCB is bad for that specific port, or if it’s the cable that connects the PCB to the 360 controller chip.