Chosen Solution
Hello, I have a issue with my Mac I was working on my computer and suddenly shutdown and restart asking me for a password and also a pin # something that I don’t have because I never used or put a password After some trials, I give up and buy a new hard drive I installed , but it didn’t work I receiving a folder with a question mark I already try pressing “C” or Command + C , etc all those keys commands I don’t know what to do a this point can someone please help me Thank You This is the serial number of my Mac: C02JHN2ZDTY3
Hello, The question mark folder is definitely the error that the HD is not having any OS installed. Did you tried with Command + R to go in recovery mode and install the OS from there? The problem with the restart, the password and the pin # looks strange to me. Looks like the Macbook was locked by somebody else over iCloud. Did you bought the computer new or from somebody else?
