One time a friend and I (both in IT at the time) tried absolutely everything to fix a bizarre computer problem, then he told me to literally pull the hard drive completely out if the case and sit unplugged overnight before putting it back in. For some reason that worked, even though unplugging everything and plugging it right back in did nothing. Asked him why and he said “No idea, I was desperate.”

Not just laptops, even. I've fixed desktops that way. Unllug and hold power button.

And I'm fairly sure it might still work in some exceptionally niche scenarios