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MacBook Pro A1502 2015-2016 Not turning on (Orange LED and 180 mA current draw) repair: Difference between revisions

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(Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== 180 mA from the charger, the charger light stays orange and machine does not turn on thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== *Not turning on. *Only 180 mA current draw from the charge port. ==Solution== Corrosion at U5400 current sensing (R5400) circuit PP3V3_SO_HS_CO...")
 
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{{stub}}
{{Repair Guide
{{Repair Guide
|Device=
|Device=MacBook Pro A1502
|Affects parts=
|Affects parts=Whole board
|Needs equipment=
|Needs equipment=multimeter, soldering iron, soldering station
|Type=
|Type=Soldering
|Difficulty=
|Difficulty=3. Hard
}}
}}
{{stub}}
==Problem description==
==Problem description==
180 mA from the charger, the charger light stays orange and machine does not turn on
180 mA from the charger, the charger light stays orange and machine does not turn on

Latest revision as of 13:12, 8 November 2023

MacBook Pro A1502 2015-2016 Not turning on (Orange LED and 180 mA current draw) repair
Device MacBook Pro A1502
Affects part(s) Whole board
Needs equipment multimeter, soldering iron, soldering station
Difficulty ◉◉◉◌ Hard
Type Soldering


This article is a stub. You can help Repair Wiki grow by expanding it

Problem description

180 mA from the charger, the charger light stays orange and machine does not turn on

Example image (Figure 1) -- No image yet. Help expand this page by uploading it!

Symptoms

  • Not turning on.
  • Only 180 mA current draw from the charge port.

Solution

Corrosion at U5400 current sensing (R5400) circuit PP3V3_SO_HS_COMPUTING. This device makes power for the stages of CPU_VCORE. U5400 signals the SMC.

  • Corrosion for U5400 was removed.
  • Jumper wires were added to replace the faulty traces at U5400.
  • U5400 and current sense resister restored.
  • U7400 (Voltage regulator) chip was replaced and surrounding circuitry restored.
  • Backlight circuitry and other areas cleaned up (corrosion).

Example video