MacBook Pro A1989 PP3V3 G3H short repair

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MacBook Pro A1989 PP3V3 G3H short repair
Device MacBook Pro A1989
Affects part(s) Motherboard
Needs equipment multimeter, soldering iron, soldering station, thermal camera
Difficulty ◉◉◉◌ Hard
Type Soldering, Micro-Soldering"Micro-Soldering" is not in the list (Soldering, Teardown, Part replacement, Cleaning, Software, BGA, General) of allowed values for the "Repair Guide type" property.


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Problem description

Missing PP3V3_G3H on A1989 MacBook Pro

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Symptoms

  • MacBook not turning on.
  • Not charging

Solution

Diagnostic Steps

Shorted CD3215

Inject 1V to the shorted rail and check with thermal camera which component is heating up, most likely it is one of the CD3215's

Corrosion on CB300

If you don't have a short on a CD3215, you probably have corrosion on CB300. If you can't see it, that is because it is hiding under the metal around the NAND.

Repair Steps

Short on one of the CD3215s

Replace the shorted CD3215

Corroded CB300

clean the corrosion and replace the capacitor if still shorted.