The SMC has successfully communicated with your charger and then turned on the light. If you can see a green or orange light on the MagSafe connector, it means both your charger and the SMC in your MacBook are working now. Let your charger top up the battery above the minimum level. However, some models of MacBooks require a minimum battery power before the Mac can turn on. If the flat battery causes your MacBook Air or MacBook Pro not to turn on, most Macs will power on automatically if you connect a working charger. If possible, try using the original power adapter with your Mac. Use the correct power adapter for your MacBook model to charge the MacBook for about 5 minutes. Test it with a lamp or a mobile phone charger if you’re unsure about the outlet. Check if the power cable is undamaged and securely plugged into your Mac and a working electrical outlet. You need to ensure your MacBook receives power from either the MagSafe or USB-C charger. Get a known-good adaptor from your friends or collages to test if your MacBook will turn on or not. Insert the cable firmly into the adaptor. The USB-C adaptor uses a removable cable. Look out for any fraying or tears in the cable. Make sure you insert the power cord into the charger firmly as well. Don’t forget to check the power cord on the charger side. Insert the plug into the wall outlet firmly.

The MacBook charger comes with a removable AC power cord. This simple step lets you know whether the power outlet is working or not. You can plug a lamp into the power outlet.

When you press the Power button or Touch ID button on your MacBook, if you don’t see any images, video, or visuals of any sort on your display, if you don’t hear a startup chime, and if you don’t hear any fan or spinning drive noise, then your MacBook is not turning on.įirst, You need to ensure that the power outlet is ok.

Macbook pro 3 beeps black screen