It could also be that the starting problem is simply not the Power button from your Macbook Pro or Macbook Air computer. If after these steps you still cannot start your Mac with the power button, you can try to remove the battery your Macbook Pro or Macbook Air computer, plug in the adapter then put the battery back. If the external power supply LED lights up, the motherboard should be fine. Before taking your Macbook Pro or Macbook Air computer to a professional, you are strongly advised to save your data (using external devices or backing up to the Cloud for example). If you have any doubts or questions about changing the built-in keyboard of your Macbook Pro or Macbook Air computer, you can simply contact Apple support. Now, your MacBook should restart normally if the issue was with the NVRAM/PRAM. Make sure to hold down the keys until MacBook restarts again. You also have the option of going to a Apple Authorized Service Center or to make an appointment in a store Apple Store. To get going, hold down Command, Option (Alt), P, and R, keys at once and turn on the device.
HOW TO TURN ON MACBOOK PRO 2019 PROFESSIONAL
You can therefore take your device to a professional technician so that it changes you. If your Macbook Pro or Macbook Air computer starts up, there is a problem with your keyboard. Locate contacts allows you to start the computer without having to use the keyboard.Remove the keyboard cable from the motherboard.If your Mac fails to start when you press the button Power, we must try to detect the origin of the problem: does it come from the motherboard or keyboard? Here are the steps to follow to find out: This implies that a keyboard malfunction or short circuit will thus render the power button on your Macbook Pro or Macbook Air computer inoperable.
Even in this case, the methods will come in handy to help you in resolving the issue. The start buttons of unibody Macbook devices are now connected to the motherboard thanks to the keyboard cable. In some cases, Mac gets turned on but Mac won’t start.
HOW TO TURN ON MACBOOK PRO 2019 HOW TO
How to Fix the Power Button on Your Macbook Pro or Macbook Air Computer