For older Mac desktops, with no T2 chip, reset the SMC like this:
Shut down. Unplug the power. Wait 15 seconds. Reconnect the power cord. Wait 5 seconds. Start the Mac normally.
My latest blog post: Sheeple: Are they succumbing to fake news, misinformation, and propaganda. (posted 2025-09-24). My latest podcast: OJB's Podcast 2029-09-09 Kiwi Values.