TWLSaveTool VS ndsForwarder

I assume based on your cfw comments you already backup your ds/3ds games, but for anyone googling or searching this reddit in the future... TWLSaveTool can backup your DS games. 3ds has Checkpoint or JKSM. You need homebrew or a cfw 3ds for these.

You could try TWLSaveTool which is an NDS save dumper/restorer for 3DS, but it could be that whatever file structure the emulator used isn’t compatible with the OG cartridge.

Since it's a DS-era game, you shouldn't be using Checkpoint, btw. Have you tried using TWLSaveTool?

If you want to extract the save from the cartridge you can use TWLSaveTool

TWLSaveTool

Rudolph’s GBA backup Tool / TWLSaveTool

If you want up to 40 Nintendo DS game icons "installed" on your 3DS Home Menu, you need to use another homebrew app called NDS Forwarder Generator. You can find and download it from the Universal Updater homebrew app.

Use NDSForwarder. Download from your computer or open the Universal Updater app and you can find it in there (use the one by MechanicalDragon). Alternatively, use YANBF.

Or use NDSForwarder or YANBF.

1. Get an R4 flashcart, THE YEAR ON THE CARD DOES NOT MATTER! Install ysmenu+rgf kernel, get it [here](https://gbatemp.net/threads/retrogamefan-updates-releases.267243/). 2. Use a [DS Forwarder](https://gbatemp.net/threads/nds-forwarder-cias-for-your-home-menu.426174/) to put a DS game on your homescreen. We recomended either [NDSForwarder](https://github.com/MechanicalDragon0687/NDSForwarder) or [YANBF](https://gbatemp.net/threads/nds-yet-another-nds-bootstrap-forwarder-more-than-40-forwarders-are-now-possible.606138/). You may need to [AP patch the roms](https://gbatemp.net/threads/ap-patch-preservation.477536/). 3. Install [Twilight Menu++](https://wiki.ds-homebrew.com/twilightmenu/installing-3ds.html) which is an application that, when opened, looks and functions like the DSi menu. It allows you to access and play Roms via a prettier interface. If your app is broken, try downloading it again from the Universal Updater app or [try this](https://www.reddit.com/r/3dspiracy/comments/10tr9hj/twilight_menu_white_screen/j7eqy0u/).

Use a DS Forwarder to put a DS game on your homescreen. We recomended either NDSForwarder or YANBF. You may need to AP patch the roms.

I don’t have the one I used but I recommend trying this one https://github.com/MechanicalDragon0687/ndsForwarder

Use [NDSForwarder] https://github.com/MechanicalDragon0687/NDSForwarder OR just open the Universal Updater app and you can find it in there (there's two different ones, I'd use the one by MechanicalDragon)

Ghost Eshop for most nds games. The other option is Vimms lair to get the rom and then use nds forwarder to put the game from your sd card to your 3ds Home Screen. https://github.com/MechanicalDragon0687/ndsForwarder