How To Fix & Reset SMC on a Mac

Follow this guide to learn how to fix and reset SMC on a Mac (macOS High Sierra or newer).

The SMC (System Management Controller) is responsible for many low-level functions of your Mac, such as the charge indicator light on the power cord, managing the battery, and making sure your mac doesn’t get overheated. Resetting the SMC controller is one of the first things you should try while troubleshooting your Mac, right after turning it off and on again – of course!

Fix & Reset SMC on a Mac

Note: if your Mac has a removable battery, instead follow the guide Fix & Reset SMC on a Mac with a Removable Battery.

How To Fix & Reset SMC on a Mac
  1. Memorize the keyboard combination Shift + Control + Option + ⏻ Power. Take a picture of this page or open it on your phone.
  2. Shut down your mac. Go to the  Apple menu and select Shut Down… Once it’s turned off, go to the next step.
  3. Press and hold the keyboard combination you memorized for at least 10 seconds and then release the keys.
  4. Press the ⏻ Power button again to turn on your Mac. You have now reset SMC on your Mac!

Fix & Reset SMC on a Mac with a Removable Battery

  1. Shut down your mac. Go to the  Apple menu and select Shut Down… Once it’s turned off, go to the next step.
  2. Remove the battery from your Mac. Turn your computer upside down and look for a tab to release the battery. If you can’t find it, please refer to your computer’s manual or support.apple.com.
  3. Press and hold the ⏻ Power button for more than 5 seconds before releasing.
  4. Reinstall the battery in your Mac.
  5. Press the ⏻ Power button to turn on your Mac. You have now reset SMC on a Mac with a removable battery!

That should do it. Hopefully your Mac works like normal again. If it dosen’t work you may need to reset the NVRAM/PRAM.

2 Responses

  1. September 26, 2018

    […] reset the bluetooth module by following any of the steps above, you may want to try to do a hard SMC reset. This resets some of the logic board settings in your computer, but doesn’t change any of […]

  2. September 26, 2018

    […] How to reset the SMC controller on your Mac. […]

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