Well, I've tried all the suggestions. Nothing worked. it seems when I flashed the previous bios something related to the bios flashing got bonked. Even the flashback is not working. The button flashes 3 times then nothing happens.
I'm trying to flash the latest bios onto my X570 Unify, but my screen is black upon rebooting to M-Flash.
It seems like no video signal issue when in M-flash mode. Already tried both HDMI and DP. Any other suggestions would be appreciated.