I was making a DSi XL Macro mod. It worked for a little bit, but it just randomly quit. It blinks blue for a second, and...

No matter what I try, I cant get any ram to read to read from slot0. BUT, It does read from slot1. I got it 2nd hand as...

It’s probably a fuse somewhere on the motherboard.

You have to replace the whole top case.

I would try cleaning the A/B/X/Y contacts with isopropyl alcohol. I’m not sure where the screw would come from… I’m not as skilled in Xbox equipment. I don’t quite know about the bumpers either since those are soldered on buttons. my only idea is that the bottom board is bad. (the one without the sticks) But again, I’m not as skilled in Xbox equipment, so I don’t know if that is the problem.