Hi guys i'm pretty new and i need a big help. I've recently bought the r4i-b9s and i've followed the instructions to install luma and homebrew launcher. Now i don't get what i need to do in order to play nds roms and maybe 3ds. Please help me cause first i don't know how to play nds roms (i have the oldest 3ds) and second i don't get why i need the r4 if at the end i haven't used it. Thanks