new macbook air suddenly after locked efi connecting to internet

Bought a macbook air so I could run the programs I have on my old macbook pro bootable backup.  Works well, but when I finished the ny project I signed up on the internet for send it offshore and left the computer for a second.  .. .IM don't know what happened... But when I came back in the room, he was stuck on a weird screen and when I tried to start near the top of my drive the EFI lock screen has appeared.

So my question is, could the lock to the internal hard drive hit if I was using an external drive to go online? Or would it be the lock for my old laptop that caused his release since this disc is a copy of the one I lost?  I used the disc quite a bit since then so I don't know why he would suddenly do this but I do not think that I was using this partition of car b wecause I prefer the partition with an older version of mac os x, which, for some reason, would not work to start this laptop. How should I do?

Hi there Vulpine acid,

Looks like you are working offline and it seems that as soon as you connected to the internet your computer was locked with a passcode of the firmware. Which tells me that the MacBook Air may have been lost with iCloud remote mode if it looked like this:

Find my Mac

Find my Mac allows you to lock your Mac, it also prevents your Mac to start by defining a firmware password. As soon as he receives the iCloud lock statement, your Mac screen a lock who has four to six empty fields.

To unlock your Mac, enter the code that you created when you locked your Mac on the site to find my Mac.

From: use a password of the firmware on your Mac

https://support.Apple.com/en-us/HT204455

There is a section in the article that talks about her taking a Genius bar for an appointment if you forgot the password, but it should be than the original purchase receipt:

If you have forgotten your password for the firmware

If you don't remember the set password using the firmware password utility or find my Mac, schedule a service appointment with an Apple Retail Store or Apple authorized service provider. Bring your proof of purchase (invoice or original receipt) with you. If you plan to visit an Apple retail store, make a reservation (available only in some countries).

You may need to reach out to the person, you bought the computer to the access code.

Thank you for using communities of Apple Support,

All the best.

Tags: Mac OS & System Software

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