I am sorry you are having this problem but let me help you.
There are some troubleshooting steps I would like you to see as per your problem description:
Here you can check more information:
As I said. I try to recover the BIOS using the .bio file but id does not start the recovery process.
Besides those steps, you can try a different monitor and cables but if the troubleshooting steps from the links above don’t fix the issue, I would recommend you contacting your local support: