Resetting SMC (System Management Controller) on a Mac is one of the troubleshooting steps that Mac users can try when they encounter some hardware or system-related issues. The SMC is responsible for handling various hardware and power functions in Mac systems, such as battery, fans, power button, and more. Resetting SMC can help to restore these functions’ proper operation, resolving issues like a frozen keyboard, battery not charging, or Mac not turning on. In this article, we will discuss the steps to reset SMC on a Mac and when it may be necessary.

When to Reset SMC on a Mac?

Resetting SMC is not something you need to do regularly, but it can be the solution to some issues that arise on a Mac. Here are some of the situations that you may need to reset the SMC:

1. Mac won’t turn on or start up

2. Battery not charging or not holding a charge

3. Fans running fast, making noise, or not working at all

4. Erratic or unresponsive keyboard

5. Issues with display, backlight, or power button

6. USB or other ports not working correctly

7. Overheating Mac or other GPU related issues

8. Mac running slow or hanging frequently

9. Unexpected shutdowns or kernel panics

How to Reset SMC on a Mac?

Resetting SMC is relatively easy and straightforward, but the steps differ depending on the Mac model. Here are the steps for different Mac models:

Desktop Macs:

1. Shut down your Mac.

2. Unplug the power cord.

3. Wait for 15 seconds.

4. Plug the power cord back in.

5. Press and hold the power button for five seconds.

6. Release the power button, and then turn on your Mac normally.

Laptops with non-removable battery:

1. Shut down your Mac.

2. Connect your Mac to a power source.

3. Press and hold Shift+Control+Option keys on the left side of the keyboard.

4. While holding these keys, press the power button and hold for 10 seconds.

5. Release all keys and turn on your Mac normally.

Laptops with removable battery, like MacBook Pro (early 2009) and earlier models:

1. Shut down your Mac.

2. Remove the battery.

3. Press and hold the power button for five seconds.

4. Reinstall the battery.

5. Turn on your Mac normally.

Conclusion:

Resetting SMC can help users to fix several hardware and power-related issues on a Mac. Although resetting SMC is generally safe and doesn’t affect your data or running applications, it’s essential to back up your Mac before attempting any troubleshooting steps. If resetting SMC doesn’t fix the issue or you’re unsure about the process, it’s better to seek help from an authorized Apple technician or technical support.