BIOS corrupted and stuck in a non-responding recovery loop

[emoriebar]

Hello,

I have been using my Victus 15L Desktop since Nov. 2022 and it worked fine until I wanted to add an extra HDD storage, which worked fine for the time being with Windows 11. But after running into annoying file access restrictions for selectively deleting files on it I wanted to boot up live-image linux.

So I tried to Shift (and CTRL) + Restart to get to the UEFI/BIOS Screen without having to press the buttons at startup and failing to do it in time and having to redo the thing until I get to the BIOS.

The computer did shut down, but only on the Windows side, it did not actually power off the system hardware and stayed in this blackscreen doing nothing stasis. 

So I had to forcibly shut it down and tried to do it the manual way by pressing the buttons on startup, but it never got to the BIOS, it always started into Windows or showed an empty black screen, but windows and the drives and per se 

worked fine, so I tried to edit the registry to force it into this startup menu, where you can choose the partition to boot from, but it did never show up.

I noticed that when I got to the black screen when trying to get into the BIOS from the startup, I was able to shut the computer down instantly (the typical BIOS behavior regarding that) by using the power button. So there was no delay like when windows or other Software is loaded, so I got to the conclusion that something regarding the BIOS was not right and I would have to reinstall it, so I got myself the (most recent) BIOS Firmware (from the official HP-website) onto my USB-Stick and first tried pressing Windows + B (BIOS recovery mode) which resulted in nothing except some beeps.

After that failed, I tried it with my USB-Stick inserted which resulted into the BIOS being newly written (and verified).

But after that the computer got, besides 8 beeps, a blue message with the message stating (summarized): BIOS corruption detected; The BIOS will be repaired automatically (when the computer is restarted [?]); Do not shut the computer down;

But after that the BIOS did - in fact - not repair but only automatically restart endlessly and stating the exact same message and  beeps. So after some time I stopped it, because it was going nowhere and removed the USB.

After that the BIOS was again automatically written again and when that was finished, it just got in the endless message loop.

The USB (or other new ones) is(/are) not getting registered by the BIOS (or what's left of it) and is not being written again, which is the current state of being.

So the question is, if there is something left I could try to fix it via firmware or similar methods?

And if it can't be repaired Firmware-wise, must the motherboard be replaced (my guess) or is the BIOS-Part something that can be repaired without replacing the whole motherboard (I don't own an SPI-Programmer).

I've reached a point where I'm not confident about what steps to take next, so any advice would be greatly appreciated!