Hacking Save copying for GBA games

[Myria]

Is it currently possible to copy GBA games' save files from one 3DS to another? If so, how?

Does SaveDataFiler's usual method work on AGB_FIRM games?

 

[Ryccardo]

Manual work with agbsave9 is currently the only option...

...oh wait, you're that Myria

 

[Sonic Angel Knight]

Well if you have homebrew, i think you can just use a save manager to do that.
Or i think if you just take the save data on the ds card inside the "Nintendo 3ds" folder and copy it to another maybe it works. But i think the first option works better.

 

[N7Kopper]

AGB_FIRM seems to be like DS cartridge games in that it uses a different save protocol. While DS(i) cart support is simple, merely different, AGB_FIRM is notorious for stumping save managers. (Including Nintendo's own devkit one) - so just use the manual method. It's actually easier than dumping and injecting, which is the only way right now to decrypt GBA saves. (and when I say "dumping" I mean the NAND copy of the save, not the SD one)