Chosen Solution

I was trying to fix the black screen of death. I opened the system and pushed down on the wifi card (seemed to be in place) then closed everything back up. Not only do I still have the black screen of death but now my d pad and my joy stick don’t work and screen does not respond to touch either. What did i do please help!

what that means is just that one of the parts in your 3ds is broken, or that they aren’t connected properly (ribbon ripped/loose). You can try just plugging everything in again, if that doesn’t fix it, consider getting a parts 3ds, sending it to a repair shop or to nintendo. Good luck!