Hey all, I'm working on a sort of interesting project (details to be revealed later) which can interface with not only 3DS game carts, but DS game carts as well. I've managed to implement DS cart functionality successfully using some of TWL Save Tool's code, but it seems that I cannot get both 3DS and DS support working at the same time. I want the user to be able to pick which type of cart at the start of the program. Is this perhaps because of the rsf file (it's CIA only at the moment), which I've noticed needs a few "TWL" flags to be set for DS compatibility? Or is it just something in my code? (I've tried taking code directly from a few 3DS save managers but although they can read the cartID, any attempt to read data from the cart results in nothing happening, but strangely no errors.) It's strange considering I'm directly using code from other save managers, the DS reading is working, but not the 3DS reading. I can try taking the rsf from it as well, but this of course would then break DS compatibility.