The PRAM was an option for standard fixes for random Mac problems in the past. Release all keys and wait a few more seconds.Without releasing the three keys, press the On/Off button and keep them all pressed for another 7 seconds.Press the Right Shift, Left Option and Left Control keys for 7 seconds.Click on the Apple Menu, “Shutdown” and turn off your MacBook.Release the button and wait a few more seconds.Press the Power button and hold it down for 10 seconds.Click on the Apple Menu, “Shutdown” and turn off the MacBook.On MacBook Air (2018 and later) and MacBook Pro (2018 and later) (Apple T2 Security chip) Wait another 5 seconds and then turn the Mac back on.ĥ.Wait 15 seconds and reconnect the cable.Click the Apple Menu, “Shut Down” and shut down your Mac.If none of this works, then you can move on to reset the SMC. Turn off your Mac (Apple Menu, “Shutdown”) and turn it back on.Restart the Mac (Apple Menu, “Restart”).Put the Mac to sleep by clicking on the Apple Menu (apple symbol), “Sleep” and bringing it back later.Use the key command “Command + Option + Esc” (on a non-Apple keyboard, “Win + Alt + Esc”) to close unresponsive programs.Save your work, hold the Power button until your Mac or MacBook turns off, then turn it back on.If you notice an error on your Mac and you are thinking about resetting SMC, it’s always a good idea to first run Apple’s suggested troubleshooting procedures. Your computer can also become slow for seemingly no reason and so on. Selecting an external (not internal) video source for some iMac displays.Īs time goes on, your Mac starts to show problems like fans running at 100% even when no heavy processes are running, keyboard LEDs start acting strangely or USB-C ports stop recognizing certain devices.Response when opening and closing the MacBooks display lid.SMS Functions on an Intel Powered Mac include:

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