Hacking Extracting saves from GBA Virtual Console games

[J3anyus]

I have an O3DS with sysNAND 4.5 and emuNAND 10.3 (running on rxTools nightlies). I also have the Homebrew Launcher installed in emuNAND through yellows8's hblauncher_loader .cia using the hax 2.5 payload. I'm trying to extract a save from a GBA Virtual Console title that's installed but I'm not having any luck - SaveDataFiler just shows "broken" for the GBA game's title ID and both svdt and profi2000's save_manager crash when I try to extract the save through the Homebrew Launcher. I do see that the GBA VC title has some save data on my SD card at Nintendo 3DS/<ID1>/<ID2>/title/00040000/<title>/data/, but it's a single file that's 192KB so it's too large to be a raw GBA save file.

Does anyone know if there's some way to extract saves from GBA VC games? I'd like to take my save and use it with a GBA emulator on my PC if that's possible.

Thanks!

 

[Ailuros27]

I've been trying to figure this out as well. Here's some info I found on the matter:
https://gbatemp.net/threads/question-how-do-i-backup-gba-vc-saves.391088/#post-5540844

 

[Ailuros27]

Scratch that. Check this:
https://gbatemp.net/threads/pre-release-agbsave9-tool-to-extract-agb_firm-saves.410684/page-2