MacBook Pro A1708 Not turning on, pulling 0.35A at 20V repair

Problem description

 * 1) incomplete

Provide a concise description of the issue here. Be as specific as possible to help readers quickly determine whether or not this is the exact problem they are facing.

Symptoms

 * Not turning on
 * Pulling 350 milliamps at 20V as measured by a USB-C meter

Solution
PP5V_S5 missing — check and reflow or replace U7650 (TPS51980) with proper pads cleaning (especially on the PPBUS_G3H_P3V3S5 input of U7650). Possible problem: Apple refurbished board; solder over corrosion causing bad joint. Example of replacing a corroded TPS51980

Dead CPU or bad BIOS can also present like this.