Make sure all ribbon cables are connected properly
Also I've heard a lot of people pulled all the plastic connectors up to remove the ribbon cables.
You should only up the ones with a latch
So I did this with my n3ds xl
And now when I turn it on only the bottom screen works.
I haven't connected to my pc yet only fitted the plug underneath and booted up.
I've checked again to see if any connections are loose. They seem fine
Just wondered which ribbon cable is for the top screen...
I didn't know they made an MSU cart for the Genesis.... I knew about the SNES one and the library for that is rather large but the Genesis one has very few games