Use component isolation methods (removing solder bridges or inductors) to determine if a short is on the supply side or the consumer load side.
Corrupted firmware is a frequent culprit. Verified BIOS and EC (Embedded Controller) dumps are often required for flashing to restore functionality. Technical Resources 10203-1 la56 mb 48.4jw06.011 schematic
Some units suffer from a "no image" state where the laptop powers on, the fan spins, and indicators light up, but the screen remains blank. Use component isolation methods (removing solder bridges or