MacBook Pro A1989 No backlight repair and MacBook Pro A1989 "Braindead" repair: Difference between pages
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{{Repair Guide | {{Repair Guide | ||
|Device=MacBook Pro A1989 | |Device=MacBook Pro A1989 | ||
|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=Soldering, Micro-Soldering | |Type=Soldering, Micro-Soldering | ||
|Difficulty=3. Hard | |Difficulty=3. Hard | ||
}} | }} | ||
{{stub}} | {{stub}} | ||
==Problem description== | ==Problem description== | ||
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 | ||
==Solution== | ==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. | ||
* | |||
Revision as of 14:52, 14 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, 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
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.