I have a 2017 MB Pro I used for work. When I started my new job I was given a new machine and started using it. My son is in highschool so I lent him the macbook. I dont have a clue what he did, but he somehow he locked it. Its connected to his account and it shows the device is locked. To make things worse, his friend tried to help hom fix it a few weeks ago. Apprently he was sent an email with the key to unlock it, but cant find the key, just the email saying a key was sent to you. What can be done to fix this if anything? I went to a an apple store but they want proof of purchase which can only be found on an old work email, I need acess to the computer to locate the invoice. Has anyone encountered this before? Your help is appreciated
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