[Need Help] Bricked Surface Pro 5

What does Windows logo mean? Is this really Windows starting? This would be OS start after finished bios / firmware routines?

Can you access bios settings?

There are two things one could do with this firmware image:

Empty NVRam will make probably make you loose machine specific data, at least a Windows key is stored there.

Clean ME region won’t hurt, but it’s very unlikely that this is the reason.