M3 DS REAL - How do I add cheat codes?

I have been playing the new Zelda Spirit Tracks game and would really like to add the infitinte health cheat codes onto my M3 DS Real card. I have an action replay card, have downloaded all the new cheat codes, but that does not work with the M3 DS Real.I have the new system files 4.7f.How do I add a cheat code onto my M3 DS Real card?Thank you in advance for any help.