No touch after joycon rail connection replacement

successfully changed the little joycon connector ( for the right side joycon) which was damaged but now I’m not getting any touch?
I tried changing the gamecard board with a spare and its still the same. Any ideas?

Your best bet would be to double-check the flex cable for the digitizer wasn’t damaged in some way or another. On another note, I have seen these game card pcb’s go bad pretty often. I had to try 3 of them on mine until I found a working one. Never could figure out what was actually wrong with them. Maybe there are different versions that only work with a specific MB revision? Who knows.

inspect the fpc connector for the gamecard reader. Might have some damage to one of the pins.