Some ports aren't for plugging things in. Some ports are for listening. And waiting.
He didn't fix the laptop. He rebuilt it. He replaced the BIOS chip with a blank one, flashed a clean, open-source coreboot firmware, and physically cut the SMBus trace going to the voltage regulator. He lost fan control and battery management. His laptop now ran hot and loud, like a jet engine. mediatek usb port v1633
"MediaTek USB Port V1633" wasn't malware. It wasn't a backdoor. It was a digital landmine, buried in a driver that pretended to be a generic USB port. Some ports aren't for plugging things in
He couldn't remove the code without bricking the board. He couldn't leave it there. But he realized the one thing the designers never expected: a user like him, with a soldering iron, a programmer, and nothing to lose. He didn't fix the laptop
But when he booted into Windows, he opened Device Manager.
He was going to keep it. As a souvenir. And a warning.