I tried to play 3ds roms on my 2DS v8.1-19e with gateway 3ds flashcart, but every time after I select BOOT GATEWAY MODE, it went back to the home menu. Then i press select button. The game list did appear, I pressed A to choose one game. After I pressed A to start the game, an error saying "The game card was removed" would appear. I tried many methods, such as formatted the microsd card in the red card as ExFAT, even added a little piece of paper between the red card and the microsd card, but still the same problem. Can someone here help me ?