How to use Unova Memory Link with 2 flash/repo carts
I successfully put a .nds file of Pokemon Black 2 on a repo cart I had purchased to play the game. I also have played through Pokémon Black on a different flash cart and I wanted to use the Unova Memory Link feature but if I try "Link Via DS Wireless Communications" then the games say: "The game inserted is not compatible. Turn off the power, insert a compatible Game Card, and try memory link again." Im unable to us "Link Via Nintendo WFC" as the servers for the program were taken down back in 2014. Does anyone have any ideas as to how I can use memory Link?