Depending on who you talk to, you’ll quickly find that there is no one answer.
Lots of people feel updating the BIOS is not necessary unless there’s a specific reason while others feel updating to the latest version is always a good idea.
The BIOS is low-level system software that should “just work” without getting in your way.
Computers are now coming with UEFI firmware instead of the traditional BIOS, but the same is true for UEFI – it’s low-level system software with a similar role.
If your Dell PC or tablet supports BIOS recovery, you can recover the corrupt BIOS by using the BIOS recovery method on your Dell PC or tablet.
If you built your own computer, a BIOS update would come from your motherboard vendor.
These updates can be “flashed” onto the BIOS chip, replacing the BIOS software the computer came with with a new version of the BIOS.
BIOSes are computer-specific (or motherboard-specific), so you will need the BIOS for your exact model of computer (or motherboard) to update your computer’s BIOS.
I've been all over the internet and still not found any options to sort this out.