These laptops include... MacBook 13 inch, mid 2009. All MacBooks and MacBook Pros, early 2009 and before.
Shut down. Remove the battery. Press and hold the power button for 5 seconds. Release the power button. Reinstall the battery. Turn on the Mac normally.
My latest blog post: Suicidal Empathy: We need empathy, but not suicidal empathy. (posted 2025-10-08). Warning: mysqli_connect(): MySQL server has gone away in /Library/WebServer/Documents/Owen2/Inc/Footer.m.inc.php on line 51
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