Hacking [HELP] Cheats in DSTwo (most preciselly Chrono Trigger)

[stefanoteco]

Hi guys! First of all I have this flashcard for quite a time, and I have also the most updated everything (firm, eos patch and usercheat.dat)

I tested in some other games like new super mario bros. the play as luigi code and everything is working. but when I try any cheat code on chrono trigger such as changing party member or XP muliplyer nothing seens to work out. I even tried some other AR Cheats on gamefaqs but those didn't work either.
Is this game not compatible with cheats? I really hate some grinding in some games :v

Well, hope you guys can help