You found a short between Drain and Source on a high-side MOSFET.
Laptop chip level motherboard repairing is the art and science of diagnosing and fixing electronic failures at the component level on a laptop’s main printed circuit board (PCB). Unlike board-level replacement (swapping entire modules), chip level repair involves working with individual integrated circuits (ICs), passive components, power rails, and signal traces. This skill is essential for reducing electronic waste, lowering repair costs, and reviving expensive laptops that manufacturers no longer support. This guide provides a structured approach for technicians and advanced hobbyists. Laptop Chip Level Motherboard Repairing Guide
A laptop motherboard consists of several key voltage rails and chips: You found a short between Drain and Source