MacBook Pro A1990 Not turning on, taking 20V and 0.014A, PP1V8 SUS shorted repair

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MacBook Pro A1990 Not turning on, taking 20V and 0.014A, PP1V8 SUS shorted repair
Device MacBook Pro A1990
Affects part(s) Motherboard
Needs equipment multimeter, soldering iron, soldering station, BGA rework station
Difficulty ◉◉◉◉ Specialist
Type BGA, Soldering


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Problem description

No power, taking 20V and 0.014A, PP1V8_SUS shorted

(Figure 1) PMIC and PCH

Symptoms

  • MacBook not turning on
  • PP1V8_SUS shorted

Solution

In this case PCH and PMIC to do. Usually if the board is taking 20V and 0.01A ~ 0.025A there is a problem with some of the PMIC's voltages. See Figure 1