GBA Please help me

[ggomi]

I put an bios.bin in the _gba folder on my sd card and turned on the twilightmenu++, but the _gba folder doesn't show up. And when I run the rom file, it says that there is no bios.bin in the _gba folder
When I look at the sd card on fbi, I can see _gba folder and bios.bin in it.

I'm not good at English, so I used a translator
Please let me know if you don't understand me

 

[Egoistamamono]

Better use VC or open_agb on 3ds than gbarunner2/3.

 

[ggomi]

Better use VC or open_agb on 3ds than gbarunner2/3.

Thank you so much