Since we're in the business of belittling each other:
there's something called asus live update utility which, indeed, works for that board. Doing a check on asus' website shows that it is an available download. You CAN update your bios. Considering literally every mobo manufacturer has a live update utility with a bios update function....
Your comment seems to suggest that you're lacking the knowledge needed to provide genuine assistance to the OP.
Going back to the OP:
https://www.asus.com/us/Motherboards/ROG-STRIX-B350-F-GAMING/HelpDesk_Download/
Select your OS and you can download the utility and update your bios from it, or at least attempt to. I won't guarantee that this will fix your issue but it may allow the bios to 'repair' itself if there is indeed an issue.
Haven't downloaded it myself as I have an msi board but confirming said existence of said utility is:
https://www.techspot.com/downloads/4206-asus-update-utility.html
I'm unable to find the utility anywhere on asus' site though their help section tells you to download the utility I'm speaking of to ensure a board is working properly. This is not found by referencing your specific issue but more of a general section of their help area.
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Note to moderators, don't try to hijack a user's thread from an op and basically calling everyone an idiot who responds with valid suggestions. You're a moderator, you have a standard to uphold, don't encourage flame. If you're having a bad day, take a break. If you can't deal with people not reading every single comment, don't be a moderator. Sorry to say but it's true, and if you feel I should be banned for pointing this out or deleting/editing this thread because you don't like having how you treat others pointed out, that's okay too. All I'm looking to do is help the OP, no matter how little you feel. An appropriate response would have been 'How would you suggest he update the bios without flashback?'
EDIT: If you still have your original CD that came with your board, there should be the utility in there.