Okay well, I've managed to dump save data, and get to an editor, I just need to rewrite it onto the cartridge now.
I managed to export it via FBI and I've got it on an editor I found on here.
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I've got an idea of how to do it, but I...
Is it possible to mod a game cartridge being used on the 3DS?
Specifically MKDS, i want to edit save data, my .nds file version of the game has it's save data modded, i was curious if you could mod it in the same way, but on a cartridge, and how?