Problem with cheats from pokemon diamond(E).

so I have all cheats, but the item cheats, the one for full pokedex and so on don't work?
the only cheats that work are 100% catch rate, shiny and catch pokemon from trainers, all others don't work...(and I downloaded an updated cheat file two days ago)

are you playing it on a flashcart or an emulator, if flashcart tell me which

I am playing it on a flashcard: M3DS real
and I have this problem with all pokemon games..., on pearl, platinum and diamond.( and I have tried USA and EU Versions) of the game

Note that cheat codes may or may not work on some devices.

Okay, but I have a cousin who also has same M3 flashcard as me, and for him the cheats work just fine?

ask him which cheats database did he download, and try with that ones or try re-dowlading the same you have now, still some of them may not work

Try injecting the cheats directly to your cheat database manually with R4CCE ;)

im kinda new here and i need cheats. i dont even know any websites that have cheats. lol

Cheat Database at GBAtemp :)

this game only works for me when the cheats are not enabled.
even when i use 1 cheat it still doesent work.
i am using a acekard 2i.

You can't do much about it. Make sure you're using AKAIO as well.

Make sure your cheats are correct, you can find Pokemon Diamon ones at gbatemp or codejunkies. They are actually tested.

some cheats require you to press select or L + R