A note about flashcarts for playing 3DS games on a 3DS. : r/flashcarts
How to mod a Nintendo DS with an R4 Flashcart - Quora
New custom Stargate 3DS flashcart sold as RPG multigame 3DS cartridge. You switch games by pressing the buttons like Sky3DS. A good way to get rid of them. : r/flashcarts
Install Boot9Strap and CFW Through NTRBoothax on Any Stock 3DS W/ Just a Flashcart! | #Pixelnews - YouTube
3DS DS R4 Flashcart Cartridge, Video Gaming, Video Game Consoles, Nintendo on Carousell