So I have a red N3DS XL that has 9.0 firmware on it and really want to get it working. I had to take apart the 3DS to fix the analog stick but while doing so I removed the motherboard. And this was a mistake as I broke one of those gray clips that you lift up. The issue now is I connected all cables back except the one that broke. I got a picture which is the top middle (the clear and black one) on the top middle of picture. So that one I left undone. Can I ask what that cable is for? And is there a way to replace that piece? The issue is when I connect all except that one the blue light turns on for 3 to 4 seconds and then turns off. Screens stay black and no popping sounds. Can this cable be the cause of it not powering on?