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→DSi
==DSi==
Nintendo released the DSi in 2009, doing away with Slot-2 (used by GBA cartridges and Guitar Hero games) but also adding new lighting effects, a camera, more RAM, and downloadable titles called DSiWare though those were capped to 16MB because they were installed to the very small internal NAND memory. DSiWare releases were also region locked, and the system language couldn't be changed. The Nintendo 3DS is also compatible with those games and offers a way to back them up to an SD card.
There's three types of games using DSi hardware enhancements:
* '''DSiWare:''' Downloadable titles downloaded only through the DSi eShop (discontinued), or the Nintendo 3DS eShop (though it uses a different file packaging format). They have a 16MB size limitation and there's lots of interesting exclusives for the system released that way.
Nintendo 3DS users can still buy (or install .cia dumps from elsewhere) DSiWare titles specifically. So far, no flashcart or emulator (save for NO$GBA, more on that later) can play dumps from the first two types in DSi mode. The only flashcard able to play the first two types (and not the third) on real DSi/3DS hardware is the (discontinued and now expensive) CycloDS iEvolution flashcard. To use said flashcard on a 3DS, since it's otherwise blocked, you'll need custom firmware allowing you to do so.
DSi used an encryption system for the game dumps that went on to be enhanced and used for the 3DS. This encryption is checked at start-up, hence why DS emulators don't even manage to boot DSiWare dumps.
