Saving problem

[Maevinn]

Hi, i was playing Star Wars episode 3 and than when i started it next day i wasn't able to play from my save file. i tried to change NDS Cartridge backup media but it didn't help. The only thing that might be wrong is that i haven't following files in the emu directory:
Biosgba.rom
Biosnds7.rom
Biosnds9.rom
firmware.bin

but i don't know how to get it...
if you can, please help me

hmmm... it shows that error for each game...

[nickxx]

already told million of times, you dont like searching right? ok if you change your NDS backup media and save again you will corrupt your save file and with the actual version you dont need to have firmware or bios only some rare games still use it, you just need to start the cartridge directly. and also if you want the bios or firmware just dump from your DS because is illegal to get it.

Can you also give more info what the message say, and also what save type are you using?

[Maevinn]

it says: Your save data is corrupted and has been deleted.
i have flash 512kB