Cannot enter BIOS, system hangs upon pressing Delete – Gigabyte Z690 UD AX (1.x)

I updated today my bios to the latest version, meanwhile Windows Update suggested me to update Intel ME as an optional update, I did. After that I cannot enter to the bios at all. When I press Delete, system hangs and only reset / power off works.

What I tried:

  1. Downgrade bios, cmos reset
  2. Update back to the latest version, again cmos reset
  3. Tried with another keyboard straight to the USB2 port with no usb hub.
  4. Updated bios via @bios app from Gigabyte, cmos reset

System boots normally, however there is no chance entering to the bios.