BIOS update file not found in Flash Mode

Hi community, I recently upgraded my CPU up a couple of generations and when I tried to install, the motherboard was giving me issues so I read that it’s probably best to update the bios because the new CPU probably will not run on an older BIOS build.

Now I’m running into an issue of not being able to update the bios because when I run flash mode and I plug in the USB with the BIOS update file it’s not giving me the update file but it’s showing up as “System Volume Information”

Yes it’s FAT32. Yes I formatted it. Yes I changed the name and yes, I plugged it into the flash USB port.

Please help!!