Troubleshooting Power Related Issues

Owned by Former user (Deleted)
Last updated: Dec 22, 2017

Andrew Chan updated May 11 at 2:10 PM


Purpose: Provide possible solutions to power-related issues on a Mac.

Apple's System Management Controller (SMC) manages power-related functions on Macs. Apple recommends the following troubleshooting steps before resorting to resetting the SMC: 

https://support.apple.com/en-us/HT201295

http://osxdaily.com/2010/03/24/when-and-how-to-reset-your-mac-system-management-controller-smc/

  1. Shut down your Mac.
  2. Unplug the MagSafe or USB-C power adapter from your computer.
  3. Using the built-in keyboard, press Shift-Control-Option on the left side of the keyboard, then press the power button at the same time. Hold these keys and the power button for 10 seconds. (If you have a 2016 MacBook Pro with Touch ID, the Touch ID button is also the power button.)
  4. Release all keys.
  5. Reconnect the power adapter.
  6. Press the power button again to turn on your Mac.