i have an old supercard lite and the m3 simply. i also have 2 microsd cards. is there any way to load my ruby or whatever rom and savegame on the sc and migrate pokemon onto pearl on my simply?
No. SC Lite doesn't even get identified as a normal GBA game, it has its own loader, therefore it can't link with slot-1 cards. Also, Pokemon requires special patching, only EZV + EZ 3-in-1 support migrate function as of now. They patch it on fly.