Hello, I need some help. I think my BIOS might be bricked.
The issue
When I power on the mini PC, the Beelink boot screen does not appear. The monitor stays black, but with the backlight on. The PC power LED turns on and the fan spins, but the system does not start.
It only booted once — a blue screen flashed very quickly and then went black again, and I couldn’t do anything.
What I have already tested
Replaced the CMOS battery with a new one.
Tried booting without the SSD.
Tested a different RAM module:
Notebook RAM in the mini PC → did not work
Mini PC RAM in the notebook → worked normally
Tested another battery (from my notebook) in the mini PC → did not work
Mini PC battery in notebook → worked normally
Tested with another HDMI cable and another monitor → same result

Can you help me understand what could be happening or what else I can try next?