What can you do with DSi CFW?

What can I do by modding my system?

Run Nintendo DS(i) game backups or ROM hacks from your DSi SD card without the need of a flashcard.
Launch any DSiWare (out-of-region and/or 3DS exclusives) from your SD card.
Boot into DSiWare and homebrew applications by holding specific buttons when turning on your Nintendo DSi.

How do I play GBA games on my DSi SD card?

Yes, it is possible to play GameBoy Advance game backups (aka GBA ROMs) on your DSi. You have to use a special DSi flash card adapter though, for MicroSD cards. Then use the emulator and place the GBA games on the Micro SD card. This is the surefire way to download DSi games on your SD card.

How do you get TWiLight on DSi?

Installing TWiLight Menu++ (DSi)

Download the latest TWiLightMenu-DSi.7z.
Extract TWiLightMenu-DSi.7z.
Copy the _nds folder to your SD card root.
Copy the BOOT.NDS file to your SD card root.
Copy the roms folder to your SD card root.
hiyaCFW users: Copy the title folder to your SD card root.

Is there a homebrew exploit for the DSi?

Team Twiizers released a DSi-mode exploit called Sudokuhax that loads homebrew from the SD card in DSi-mode. The exploit requires that you have purchased EA’s Sudoku game. More details and download: [1].

Is there an open source hack for DSi enhanced games?

Wintermute has made available an open source DSi hack. The exploit works on DSi enhanced games, allowing you to run custom code from a save file. Instructions for using the exploit can be found here: [7] The cooking coach and classic word games savegame exploits are blocked on the latest system version.

Are there any exploits for the DSi SD card?

How to get into the fwtool file on a DSi?

Copy fwTool.nds to the root of your SD card. Rename that file to boot.nds. Eject your SD card and insert it into the DSi. Switch on the DSi. Open Flipnote Studio and trigger ugopwn using the method you used before. ( Steps 11-24 in Section I of the downgrading guide.) Now you’re in fwTool.