Anonymous
Inactive
Post count: 63

https://github.com/RetroPie/RetroPie-Setup/wiki/Game-Boy-Advance

The wiki shows you where to place your BIOS files. A quick Google search should find yourself one you can rename as necessary.

Also, I think the other emulators like vba or mgba don’t require the BIOS file.

Use the runcommand menu to change emulators.
https://github.com/RetroPie/RetroPie-Setup/wiki/runcommand