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Apple Computing Products:
macOS - Notebook Hardware
SOS help please. Macbook Pro won't turn on. Blinking Light
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<blockquote data-quote="chas_m" data-source="post: 1088045"><p>I do not know what specifically is the OP's issue, but I have heard a very similar story 1000 times from various laptop owners, and very often (not always, but very often) it turns out to be something I call "heat coma."</p><p></p><p>THE CAUSE: putting the machine to sleep when its hot and immediately sticking it in a bag or case. The laptop's temp sensors find that temps are still too high and can't vent, or sometimes something causes the machine to "wake up" while its still in the bag and can't vent. Bottom line: bad ventilation causes the problem.</p><p></p><p>THE RESULT: won't turn back on. Makes sounds like it is turning on or IS on, but screen remains black.</p><p></p><p>THE FIX: Remove battery and power from the machine. Let it sit for an hour. Put battery back in and start up. It will usually reboot normally at this point.</p></blockquote><p></p>
[QUOTE="chas_m, post: 1088045"] I do not know what specifically is the OP's issue, but I have heard a very similar story 1000 times from various laptop owners, and very often (not always, but very often) it turns out to be something I call "heat coma." THE CAUSE: putting the machine to sleep when its hot and immediately sticking it in a bag or case. The laptop's temp sensors find that temps are still too high and can't vent, or sometimes something causes the machine to "wake up" while its still in the bag and can't vent. Bottom line: bad ventilation causes the problem. THE RESULT: won't turn back on. Makes sounds like it is turning on or IS on, but screen remains black. THE FIX: Remove battery and power from the machine. Let it sit for an hour. Put battery back in and start up. It will usually reboot normally at this point. [/QUOTE]
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Apple Computing Products:
macOS - Notebook Hardware
SOS help please. Macbook Pro won't turn on. Blinking Light
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