Laptop (MacBook, MacBook Air, MacBook Pro)
If you're having an issue with your computer, you might need to reset the System Management Controller (SMC) in your Mac. These steps are for machines that have a T2 Security chip. If your computer is one of these:
- iMac Pro
- Mac Pro introduced in 2019
- Mac mini introduced in 2018
- MacBook Air introduced in 2018 or later
- MacBook Pro introduced in 2018 or later
It has the T2 Security Chip. If your computer is not listed, click here for the instructions to reset the SMC on your computer. Before resetting the SMC, try these steps:
- Shut down your Mac.
- Press and hold the power button for 10 seconds, then release the button.
- Wait a few seconds, then press the power button to turn on your Mac.
If the issue persists, follow these steps to reset the SMC:
Shut down your Mac.
On your built-in keyboard, press and hold all of the following keys. Your Mac might turn on.
Control 
on the left side of your keyboard
Option (Alt) 
on the left side of your keyboard
Shift 
on the right side of your keyboard
- Keep holding all three keys for 7 seconds, then press and hold the power button as well. If your Mac is on, it will turn off as you hold the keys.
- Keep holding all four keys for another 7 seconds, then release them.
- Wait a few seconds, then press the power button to turn on your Mac.
Desktop (iMac Pro, Mac mini)
- Shut down your Mac, then unplug the power cord.
- Wait 15 seconds, then plug the power cord back in.
- Wait 5 seconds, then press the power button to turn on your Mac.