Still can’t get Big Sur to boot on my 2011 Early MBP…

Still can’t get <a class='btn-link text-primary' href='/2020/12/install-macos-big-sur-on-supported-pc.html'>Big Sur</a> to boot on my 2011 Early MBP…

I recently tried installing Big Sur on my MBP Early 2011 13-inch (8,1) but when it comes to boot into the setup it just hangs and vents are on full blast. I reinstalled High Sierra and recreated the bootable USB but the same happens. Before downgrading to High Sierra I encountered a weird issue where the keyboard’s backlight was flashing on and off. (I have Success fully installed Big Sur in the past with no issues.) Why is it happening?

Author: @rackajuhu