How to mod a Nintendo DS with an R4 Flashcart - Quora

How to set up R4 for DS/DSi/3DS/2DS

How to mod a Nintendo DS with an R4 Flashcart - Quora

I figured out how to use a r4 NDS card,but every time I try to play the game I just get this screen (the photo).I don't know if I'm doing anything wrong.

How to mod a Nintendo DS with an R4 Flashcart - Quora

Should I mod my Nintendo 3DS because of the closure of the shop? Also, would Nintendo care if I did? - Quora

How to mod a Nintendo DS with an R4 Flashcart - Quora

Will they make a Nintendo 4DS? - Quora

Do I need custom firmware to use an R4 card in my new Nintendo 3DS XL? - Quora

How to transfer my old games on DS Lite to Nintendo 2DS - Quora

Help! How to repair a R4? : r/flashcarts

Which had a stronger library, the Nintendo DS or the 3DS? - Quora

Can I use my old r4 card in the new Nintendo 3DS's DS slot? - Quora