Powers on, then powers off as if power button is held down
The other day, I opened my MacBook Pro and was surprised that it was shut off completely and not just asleep, but no biggie until I start it up and about 2-3 seconds later it shuts itself off. Tried it several times with the same result. I zapped the PRAM, tried booting restore volume as well as another startup disk, and none of that worked. Once or twice, it would boot up fast enough to see my desktop and click a couple of things to see that everything looked okay once in.
Then I reset the SMC. At first, it bricked. The power light on the charger went off and it wouldn't start at all no matter what I did. So I took the cover off the back and disconnected the battery which made it light up again, but still powered off after 2-3 seconds of coming on.
From my troubleshooting, I'm pretty sure there is something wrong with the power button. It acts as if it is stuck. Maybe something got into it? I popped the button off and blew some air in there but no sign of moisture or damage from the top.
Is there any way to test the power button? Does anyone have another theory or troubleshooting ideas?
Ist dies eine gute Frage?
6 Kommentare
Can you give us the exact model you have. If you can still see the serial number on your bottom cover you can find your system here: EveryMac - Lookup. Once you know paste the systems URL link here for us to see.
von Dan
We need that exact machine as there are known issues on different models!
von mayer
Sorry for the delayed response. The model is A1398.
I went to the Apple Store. They said there were several issues in the diagnostic that all go back to a bad logic board. The power stayed on when booted in diagnostics, BTW. As far as Apple is concerned, the only option is to pay $600 to get anything fixed it might need. While it seems like there should be a workaround at least, I'm starting to believe that is going to be the only option.
von Johnny Krenek
Which one?? A1398. Really need to know here.
We might have a better answer but without knowing which of the many models Apple has produced we just can't help you.
von Dan
Is EMC 2881 the extra number you're looking for?
von Johnny Krenek
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