Hi! I've been wondering for a while how to make back-ups of my games as I constantly lose the cards. I have a DSi XL version 1.4.5A and I'm completely new to this. I've seen you need to have some sort of flash cart and I read the DS/DSi/3DS "hacking" F.A.Q. & Which Flash Cart Should I Get? tutorials but I'm still a bit confused. Thanks!

EDIT: Also sorry if this is in the wrong section

 

[Arithmatics]

You need a DS Phat or a DS Lite because Dsi/3ds aren't supported by what we have.

Even then I have a feeling the wifi method based on the stickied topic regarding how to backup your games/saves:

https://gbatemp.net/threads/how-to-dump-your-own-3ds-ds-games-saves.274290/

Won't work anymore because nintendo wifi connection has been discontinued for ds and wii.

So I recommend just going the hardware route if you absolutely cannot buy a ds phat/lite or just going the slot 2 route if you can buy the required items.