After the logoFail vulnerability was disclosed I downloaded the latest BIOS (4702) for my mobo. Used the EZ Flash inside the BIOS to update, which seemed successful, and then continued with the restart when prompted. However upon restart my system seemed to hang indefinitely with the mobo error code d6 which is "no console output detected." I pressed restart after waiting quite a few minutes and my system seemed to boot fine except it completely skipped the Asus splash screen and went directly to Windows. This concerned me so I attempted to restart and enter the BIOS to no avail. Spamming the delete key constantly from the moment of restart till the Windows login screen appeared did nothing. I tried using the advanced startup options to restart directly into the UEFI but it still boots directly to Windows. I then used the mobo BIOS flash button and a thumb drive with the new BIOS on it to reinstall it, just in case the install was botched, but after the BIOS reinstalled I still have the exact same issue. Any help would be greatly appreciated because my anxiety is about through the ceiling. Thanks.

Edit: Solved

Ok, this was extremely weird but just in case anyone else has this problem and nothing else works try this if you have an Nvidia card.

1 - Go to:https://www.nvidia.com/en-us/drivers/nv-uefi-update-x64/

2 - Download the file there and run it and if a firmware update is needed let it update it.

3 - Restart your PC and see if you get the normal splash screen and are able to access your BIOS

I just built a new computer with Asus ROG Crosshair VIII Hero (wifi) and a Ryzen 5950X, but the computer stops booting after showing the Press F2 or Del flash screen. It will not enter BIOS. I have tried multiple keyboards on multiple USB ports.

I figured it might be the BIOS version having a conflict with my CPU, so I tried using the USB BIOS Flashback utility where you plug a USB stick into a specific USB port marked BIOS and press the BIOS flash button on the back of the motherboard until it starts blinking.

The result is that the button blinks a few times, then goes solid blue and nothing happens. The activity light on the USB stick also blinks once.

I have the correct filename (C8H.CAP), using the 2702 version of the BIOS, as indicated here, nothing else on the USB stick, formatted to FAT32, file in root, no other partitions, I have tried with a USB2 and USB3 stick.

I also have a post Q code 02 which means "AP initialization before microcode loading". I have seen that might indicate a power issue, but I can't figure out what that could be. My GPU, CPU and 24 pin are all connected as they should be and the PSU has worked fine in my old computer.

Am I missing something obvious here?

so im trying to help my friend install his latest bios update here the link

https://www.asus.com/ca-en/motherboards-components/motherboards/all-series/maximus-viii-hero/helpdesk_bios?model2Name=MAXIMUS-VIII-HERO(BIOS 3802)

but neither of use understood what to do after reading the text in red i never encountered anything like this so i really have no clue what to do (i have the usb ofc i alr did multiple bios update on my system but mine were straightfoward) he never updated his bios before he bought new ram and it didnt work well so im trying to help him as mush as possible