Chosen Solution
So I pushed down on my 3D knob a bit too hard as when i did my 3DS popped then turned off. Everytime I turn it on it works but then moving the top screen causes it to pop and turn off. I suspect it’s something with the top screen as I have tinkered with the bottom one and no changes have happened. Is there a 3DS guide on this website that would be sutiable for this?
Nintendo 3DS Teardown