I am currently in the market for a 3DS flashcart that can support system version 10.3.0-28U. Is there one that can also support both 3DS and DS games? If not, one that can play DS games only? Would I need Homebrew channel installed? Will it support all models of 3DS? I thought about purchasing a SKY3DS, but found out it doesn't support DS games. I've heard of carts that can support both, but only work with older system versions, and downgrading is impossible. Also, having support for emulators is important, such as NES, SNES, and GBA emulators. Are there any 3DS flash carts that can meet these criteria?