Hacking CycloDS Micro: Savefiles are not found

[Light7]

Hello.

I have the CycloDS Evolution and the CycloDS Micro, with the latest firmware (v1.41). When I try the GBA game (Castlevania: Circle of the Moon in this case) I cannot save. So when I exit the DS and restart the game the save file cannot be found. I have patched the ROM with the CycloDS ROM Patcher v1.0.

Can any of you help me solve this problem ? Many thanks in advance.