Click the Apple logo and Shut Down your MacBook.Once you have identified that your MacBook has the T2 chip, here is how to reset the SMC. If your Mac has the T2 chip, it will be mentioned here.Select Hardware from the left sidebar and click Controller.Click the Apple logo → About This Mac → System Report.Here is how to know if your Mac has the T2 chip or not. Recent Mac desktops and notebooks (notably 2018 and later) have Apple T2 Security Chip responsible for encrypted storage, secure boot, enhanced image signal processing, and security for MacBook’s Touch ID data. Reset the SMC on MacBook with the T2 chip

Thus, it is essential to know about your Mac and follow the steps accordingly. The steps are not the same for all Mac computers. Reset SMC on Mac desktop computers with or without T2 chip.How to reset SMC on MacBook without the T2 chip.Reset the SMC on MacBook with the T2 chip.If you face the problems mentioned above, resetting Mac’s SMC will help. Unwarranted problems with target display mode.Mac fails to recognize externally connected devices.You have issues while closing or opening the MacBook lid.Screen brightness and keyboard backlight do not respond automatically to ambient light.Mac’s fan kicks in at full speeds even when there is no heavy use.Battery indicator lights (on the left side) on earlier MacBooks do not represent the right status.The light on the MagSafe charger does not behave properly.The keyboard backlight does not work correctly.

If you have problems related to any of the features mentioned above, resetting SMC will help. How to know that you need to reset Mac’s SMC

Selecting an external (instead of internal) video source for some iMac displays.Behavior when opening and closing the lid of a MacBook.Sensors such as the sudden motion sensor, the ambient light sensor, and keyboard backlighting.Indicators such as status indicator lights (sleep status, battery charging status, and others).Internal fans and other thermal-management features.Power, in the power button and USB ports.Courtesy of official Apple Support, here is the list of actions SMC is responsible for. SMC takes care of several things, including actions that happen even when the Mac is off - for example, pressing the power button or the orange light when you connect the Mag Safe charger to your MacBook. To know if your Mac has an Intel processor or Apple chip, click the Apple logo at the top left and choose About This Mac.

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