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.
I usually write a blog post about once a week. The latest post can be viewed here: Problematic Ideas: Some people will read this and think, what's the problem here? (posted 2025-08-30 at 14:00:03). I do podcasts too!. You can listen to my latest podcast, here: OJB's Podcast 2025-08-07 What is Anything?: Use language in an honest way to communicate instead of obfuscating..