Help Desk: SMC Reset
How to reset the SMC on Mac desktop computers
-Choose Apple menu > Shut Down.
-After your Mac shuts down, unplug the power cord.
-Wait 15 seconds.
-Plug the power cord back in.
-Wait 5 seconds, then press the power button again to turn on your Mac.
How to reset the SMC on Mac notebooks
If the battery is nonremovable:
-Choose Apple menu > Shut Down.
-After your Mac shuts down, press Shift-Control-Option on the left side of the built-in keyboard, then press the power button at the same time. Hold these keys and the power button for 10 seconds. If you have a MacBook Pro with Touch ID, the Touch ID button is also the power button.
-Release all keys.
-Press the power button again to turn on your Mac.
If the battery is removable:
-Shut down your Mac.
-Remove the battery.
-Press and hold the power button for 5 seconds.
-Reinstall the battery.
-Press the power button again to turn on your Mac.
