Flash bios not working

[SamHF]

This is all I have plugged into to try do the bios flash. White light inside usb port flashed 3 times when i press button

MSI MAG X570 TOMAHAWK WIFI AMD X570 Chipset (Socket AM4) ATX Motherboard
Corsair HX Series HX850 850 Watt 80 PLUS� Platinum Certified Fully Modular PSU

I downloaded the bios file and extracted it and renamed it MSI.ROM. Plugged into the USB slot next to the flash bios button, switched the PSU switch. Press the flash bios button and nothing happens. Ocassionally I see a white light inside the USB port (not my usb) it flashes and doesn't come back. It's been 20mins and nothing has happened.

 

[Tegneren]

Does this mean you're not able to get into the BIOS conventionally?

 

[SamHF]

3 minutes ago, Tegneren said:

Does this mean you're not able to get into the BIOS conventionally?

 

what do you mean? i only have psu plugged into the psu to flash bios.

[Tegneren]

1 minute ago, SamHF said:

what do you mean? i only have psu plugged into the psu to flash bios.

Ok. Try installing CPU, RAM and GPU to the mobo, and also the 4/8 pin cpu power (and also gpu power if necessary). Connect a monitor and start the system and enter the BIOS that way. If that works you can flash the new bios from inside it

[SamHF]

Fixed the problem. Used a tool called rufus to make the usb FAT32!