READ NOT RAD THIS SORRY
I updated my B450-F to 2406 and had problems like others with keyboard pollling too fast and no mouse. Not good. Asus doesn't allow a rollback with their flash utility so I used this thread to get back to 2301 which is stable.
Just make sure you name the bios to bios.rom when you convert the file from a CAP to ROM
Thread:
https://rog.asus.com/forum/showthread.php?99490-Flash-any-most-Asus-motherboard-Bios-in-DOS-with-USB...