How to Reset the NVRAM, PRAM, and SMC

Resetting the SMC and PRAM/NVRAM can help Intel-based Macs, like the MacBook Pro and MacBook Air, run smoothly again.
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Reset the SMC on a MacBook

There are a few different ways to reset the SMC, depending on what kind of Mac you’ve got. The method to reset a MacBook Pro is different from that of an iMac, for instance.

Before you begin, try closing all your open apps and restarting your computer. That can fix a lot of problems on its own.

 

Reset the SMC on an M1 MacBook

You don’t need to reset the SMC on a MacBook or Mac Mini powered by Apple Silicon. In fact, you can’t, because Apple’s chip doesn’t have a system management controller.

If you encounter any of the problems that you’d normally solve by resetting the SMC, some users have suggested that switching off your Mac for 30 seconds will do the trick, before restarting your computer.

But for the most part, you just don’t need to worry about it.

 

Reset the SMC on an Intel MacBook

To reset the SMC on a MacBook with the Apple T2 Security Chip (models from 2018 or later):

  1. Shut down your Mac.
  2. Press and hold the power button for 10 seconds, then restart.
  3. If that doesn’t fix the problem, turn the Mac off again.
  4. Press and hold the right Shift key, the left Option key, and the left Control key for seven seconds.
  5. Keep these keys pressed while you press and hold the Power button for seven seconds.
  6. Release all the keys and wait a few seconds. Now restart your MacBook.

To reset the SMC on a MacBook with a non-removable battery (mostly pre-2018):

  1. Shut down your Mac.
  2. Press and hold Shift, Control, and Option on the left side of the keyboard. Now press and hold the Power button (or Touch ID button) as well.
  3. Hold all the keys down for 10 seconds.
  4. Release all the keys and turn on your MacBook.

To reset the SMC on an older MacBook with a removable battery (mostly pre-2015):

  1. Shut down your Mac.
  2. Remove the battery.
  3. Press and hold the power button for five seconds.
  4. Reconnect the battery and turn on your MacBook.

Reset the SMC on an iMac, Mac Mini, or Mac Pro

To reset the SMC on a desktop Mac with a T2 Chip (such as an iMac Pro):

  1. Shut down your Mac.
  2. Hold down the power button for 10 seconds.
  3. Release the power button, wait a few seconds, then restart the computer.
  4. If the problem hasn’t gone away, turn off your Mac again.
  5. Unplug the power cord.
  6. Wait 15 seconds.
  7. Reconnect the power cord and wait five seconds.
  8. Turn on your Mac.

To reset the SMC on older desktop Macs (mostly pre-2018):

  1. Shut down your Mac.
  2. Unplug the power cord.
  3. Wait 15 seconds.
  4. Reconnect the power cord and wait five seconds.
  5. Turn on your Mac.

Reset the PRAM or NVRAM on a Mac

If you’ve got an M1 Mac then you don’t need to reset the NVRAM. If it’s needed, the process will happen automatically whenever you restart your computer.

For older Macs, you don’t need to know if yours has NVRAM or PRAM, as the process to reset both is the same:

  1. Shut down your Mac.
  2. Press the power button.
  3. Before the grey screen appears, press the Cmd, Option, P, and R keys at the same time.
  4. Hold the keys until your computer restarts and you hear the startup sound a second time.
    1. On Macs with the T2 Security Chip, hold the keys until the Apple logo appears and disappears for the second time.
  5. Release the keys.

After you reset the NVRAM or PRAM, you might notice that some of your settings are lost, such as the time, volume, mouse settings, and keyboard preferences. If you remember your previous computer settings, you should be able to get it back to normal in just a couple of minutes.

Find more Tutorials on Gaming, Windows, Hacking, Coding in the Tutorials section.

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