New install, Controller does not work?

Hey everyone. I just sucsessfully installed a matrix infinity in my v5 playstaion. Everything is perfect, it books everything great. Ps2 original, burned, psx, burned. Everything. However, the controller is not responding at all. I have tried to plug it in a few times to the motherboard but to no avail. I know it doesnt go in very will, it pops right back out. I have hot glued it shut, and also but stuff in between it to keep it closed. its making contact i assume. What the heck is wrong? is there a solder point that is off perhaps or something? please help!

where it joins the motherboard, there is a small plastic clip that lifts up to put cable in and pushes down to hold it in place, this should hold it tight, its the same clip that is at the other end of that lead, if its not closing tight then the plastic clip is obviously broken, make sure the lead has the exposed parts facing down, the problem would definitaly be in that clip somewhere if its loose

If the cables are in and good. And still doesn't work check fuse ps7

check ribbon cable..