MacBook Pro A1989 No backlight after waking from sleep (black screen) repair

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MacBook Pro A1989 No backlight after waking from sleep (black screen) repair
Device MacBook Pro A1989
Affects part(s) Motherboard
Needs equipment multimeter, soldering iron, soldering station
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

Black screen after returning from sleep (no backlight but has picture)

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Symptoms

  • MacBook works normally, but after waking up from sleep there is no backlight anymore

Solution

Lid detect sensor (J4800 or J4801) missing PP1v8_SLPS2R or deffective. Ran a Jumper from CB402 to the cap on top of J4801.