Now turn on your MacBook Pro and see if this fixed your issue. Press and hold the left Shift key, the left Control key, the left Option key and the power button on your notebook for 10 seconds, then release them. If you are using a MacBook Pro 2017 or earlier Resetting this controller is helpful for fixing a lot of hardware issues, including that you canвЂ™t turn on your MacBook Pro. The SMC (System Management Controller) in your MacBook Pro is responsible for some important hardware functions of your notebook. But if not, you may need toвЂ¦ Fix 3: Reset the SMC To do this:ДЎ) Remove the power cable from your MacBook ProДў) Press and hold the power button for 10 seconds, then (donвЂ™t release the button!) plug the power cable back into your MacBook Pro.ДЈ) Release the power button when you see your MacBook Pro start up. This is an effective fix for your MacBook Pro not working issue. If this didnвЂ™t work for you, move on to Fix 2, belowвЂ¦ Fix 2: Press the power button for 10 seconds And replace your cable or adapter with the new ones if youвЂ™re experiencing any problem with them. If your laptop has been plugged in, then make sure your power cable and adapter are not broken. Then wait for a couple of minutes, and try turning it on. If you were using your laptop on battery power, just plug the power cable into your notebook. Make sure your MacBook Pro has enough power. This is the first thing you should do when your MacBook Pro is not turning on. Fix 1: Check the power status of your MacBook Pro Although these fixes are for MacBook Pro, some of them also work for the MacBook Air or iMac wonвЂ™t turn on issue.

Macbook pro power cord no serial number