How to reset SMC on MacBook, Mac Mini and iMac

Performing an SMC reset has the potential to fix problems and performance-related issues on Mac. Below are the actual steps to reset SMC on MacBook, Mac Mini and iMac.

Reset SMC on MacBook, Mac Mini and iMac

SMC or System Management Controller is a microchip located on the logic board of Apple computers with Intel processors.

SMC is responsible for functions such as battery control, battery indicator, temperature control, light detection, fan speed, keyboard backlight and other low-level functions.

Sometimes SMC can get confused or corrupted which causes problems on Mac computers and needs to be reset.

When to reset SMC on Mac?

In general, the following issues indicate the need for an SMC reset on MacBook, Mac Mini, and iMac computers.

Power issues: MacBook won’t turn on, battery won’t charge, battery indicator light won’t work. Keyboard backlight not working, Mac shuts down abruptly or won’t wake from sleep mode.

cooling system: Fans do not work, fans always run at high speed.

Display Issues: External display not working, videos not playing, display brightness change.

Devices & Ports: Ports not working, externally connected devices not working, trackpad not working, keyboard not responding normally, or mouse behaving abnormally.

Performance related issues: Slow or sluggish performance even with low CPU load, Bluetooth not working, Mac won’t connect to WiFi and others.

The steps to reset SMC vary depending on the make and model of your Mac and whether or not it has one Apple T2 security chip.

Check if your Mac has an Apple T2 chip

Before proceeding with the SMC reset steps, you need to find out if your Mac has a removable battery and if it comes with an Apple T2 chip or not.

1. Click on Apple logo > About this Mac > system information.

2. On the next screen, click controller in the left pane. In the right pane you can see if your Mac has it Apple T2 chip.

After locating T2 chip, follow the related steps to reset SMC on your Mac computer.

1. Reset SMC on MacBook without Apple T2 chip

If your MacBook doesn’t have an Apple T2 chip, find out if it has a removable or non-removable battery.

If the battery is not removable:

1. Click on Apple logo > shut down and wait for your Mac to shut down.

2. Disconnect USB storage and other attached devices from your Mac.

3. Press Shift+Ctrl+Option on the left and additionally press the power button. Press and hold these four buttons for 10 seconds.

4. publication All keys at the same time.

5. Start your Mac by pressing perfomance Button.

Note: Your Mac’s startup time immediately after the SMC reset may take longer than normal.

If the battery is removable:

1. Click on Apple logo > shut down and wait for your Mac to shut down.

2. Remove the battery from your Mac.

3. Hold down the power button for 5 seconds.

4. Reinstall the battery.

5. Start your Mac by pressing the power button.

2. Reset SMC on Mac Mini, iMac without T2 chip

Follow the steps below to reset SMC on desktop versions of Macs like iMac, Mac Mini, and Mac Pro.

1. Click on Apple logo > shut down and wait for your Mac to shut down.

2. Unplug the power cord from your Mac.

3. After 15 seconds > plug in the plug power cord back in.

4. Wait 5 seconds and press perfomance button to restart your Mac.

3. Reset SMC on Macbook with Apple T2 chip

Follow the steps below to reset SMC on newer versions of MacBook Air and MacBook Pro laptops (2018 and later).

1. Click on Apple menu > shut down and wait for your Mac to shut down.

2. Remove all accessories from your Mac.

3. Hold down the power button on your Mac until Apple logo appears on the screen and disappears.

Note: Continue holding the power button while the Apple logo appears on the screen and release the power button once the Apple logo disappears from the screen.

4. Wait 10 seconds and press the power button to restart your Mac.

Note: If you have a MacBook Pro with Touch ID, the Touch ID button is also the power button.

If that doesn’t resolve the issue, follow the steps below.

1. Click on Apple menu > shut down and wait for your Mac to shut down.

2. Hold Right shift key + left possibility + control Buttons for 7 seconds > Hold these buttons and press the power button for 7 seconds.

Note: The Apple logo may appear and the Mac turns on and off.

3. Release all three buttons and the power button.

4. After 5 seconds, start your Mac by pressing the power button.

4. Reset SMC on Mac Mini, iMac with Apple T2 chip

Follow these steps to reset SMC on newer versions of Mac mini, iMac, and iMac Pro desktop computers (2018 and later).

1. Click on Apple menu > shut down and wait for your Mac to shut down.

2. Remove all accessories from your Mac.

3. Hold down the power button on your Mac until Apple logo appears on the screen and disappears.

Note: Continue holding the power button while the Apple logo appears on the screen and release the power button once the Apple logo disappears from the screen.

4. Wait 10 seconds and press the power button to restart your Mac.

If that doesn’t resolve the issue, follow the steps below.

1. Click on Apple menu > shut down and wait for your Mac to shut down.

2. Separate the power cord.

3. Wait 15 seconds > plug in the plug power cord back in.

4. After 5 seconds, start your Mac by pressing perfomance Button.

Source: Apple support

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