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|Affects parts=Motherboard | |Affects parts=Motherboard | ||
|Needs equipment=multimeter, soldering iron, soldering station, thermal camera | |Needs equipment=multimeter, soldering iron, soldering station, thermal camera | ||
|Type= | |Type=Soldering | ||
|Difficulty=3. Hard | |Difficulty=3. Hard | ||
}} | }} | ||
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==Problem description== | ==Problem description== | ||
Any shorted subrail on | Any shorted subrail on A1989 machines can cause the machine to hang on POST.[[File:Placeholder image.jpg|thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it!]] | ||
==Symptoms== | ==Symptoms== | ||
*MacBook hanging on POST | *MacBook hanging on POST | ||
Latest revision as of 15:25, 29 October 2023
| MacBook Pro A1989 "Braindead" repair | |
|---|---|
| Device | MacBook Pro A1989 |
| Affects part(s) | Motherboard |
| Needs equipment | multimeter, soldering iron, soldering station, thermal camera |
| Difficulty | ◉◉◉◌ Hard |
| Type | Soldering |
This article is a stub. You can help Repair Wiki grow by expanding it
Problem description
Any shorted subrail on A1989 machines can cause the machine to hang on POST.
Symptoms
- MacBook hanging on POST
Solution
- Thermal imaging can reveal abnormal heat caused by a shorted component.
- This condition is most frequently caused by a SSD subrail, such as the 2v7 SSD power line.