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MacBook Pro A1990 "Braindead" repair

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Revision as of 16:18, 11 October 2023 by ASRepairs (talk | contribs) (Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== Any shorted subrail on A1990 machines can cause the machine to hang on POST. thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== *MacBook hanging on POST ==Solution== * Thermal imaging can reveal abnormal heat caused by a shorted component. * This condition is most frequently...")
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MacBook Pro A1990 "Braindead" repair
Device
Affects part(s)
Needs equipment
Difficulty
Type


Problem description

Any shorted subrail on A1990 machines can cause the machine to hang on POST.

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

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.
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