Hacking r4 chip cheats appear, but deactivate after saving HELP!

[monkeydude]

i got an r4, and i got cheats for the games. when i press y and cheats appear, i activated some of them. then, after i saved the settings, i went back inside the cheat menu and none of the cheats were on. is there a reason for that?

Another explanation:
1: pressed y and activated some cheats and saved
2: pressed y and the saved settings aren't there.

this is a

"R4 Upgrade Revolution for Ds
(NDSL/NDS"