I’m going to guess that the reason that this machine is brain dead, even though it has its primary power rails, is because … Apple.Source: YouTube
It died because of improper usage: The user caused the CPU to execute instructions. You’re are not supposed to do that! Macbooks are a piece of art, to show to other people that you have money to just throw away. You’re not supposed to do computing with them. Only nerds do that, with their ugly black Thinkpads.