Using an R4i SDHC 3DS RTS, I installed the GBA Backup Tool and attempted to back up my copy of Dynasty Warriors Advance. It recognized the game and succeeding in creating a backup .sav. I used GodMode9 to inject the .sav into a VC version of the game, and the injection was successful. I then boot up the game, and it acts as if it's the first time I played the game. I put it in No$GBA (with the .sav in the battery file) to check, and the same result happens - I'm getting a full blank out of my save file, even after doing all the steps correctly. I don't understand what's wrong - is anyone able to help?
