3ds xl blue light turning on then off

(quick note, my ds does have cfw, but it was working fine and worked fine at one point during this saga)

Hey everyone, this is a long and complicated story that started when my little cousins dropped my 3ds. So the hinge cracked and snapped off the plastic eventually, so I tried to open the ds to fix it. Upon reassembly, I noticed that at first, the light turned on, and the screen turned on, but it there was no image and it turned off after a second. (I realize NOW that my issue was the IR board was flipped).

So I kept screwing around with it more and &&^&@@ up the bottom small ribbon cable clip, so I can’t get it back in placr. Last night, I was able to hold that cable over the contacts, and at last, the DS turned on! However there was still no image, but I could at least hear the home menu music, I was getting closer.

Now today, I looked at it again and the light just turns on then turns off after a second... great. I don't even know what to do at this point, if I keep screwing with the cables I'm only gonna mess them up more than I feel like i already have. I just want to get it to at least turn on so I can transfer my data to a new 3ds. If you guys have any suggestions they would be greatly appreciated, thank you so much!