2012 macbook pro 3 beeps and will not boot up

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.

2012 macbook pro 3 beeps and will not boot up