Question about Apple MacBook Mac Notebook
You could reset the PMU (Power Management Unit) by unplugging the computer,removing the battery and hold the power button in for about 10 seconds,then plug in the power supply while still holding the power button,after about 5 seconds of it being plugged in,let go of the power button,then quickly press it again, the computer should power up with the fan running at full speed,if it boots without freezing,shut it down, then turn it back on to reset the fan, and it's fixed, if not,check your warranty status on apple's website and setup an appointment to the genius bar closest to you.
Posted on Feb 08, 2009
You can try to take off the battery for 24 hours at least, then put it back and switch on
Posted on Feb 04, 2009
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Posted on Jan 02, 2017
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