IMac disk locked, macOS cannot be reinstalled, disk erase not functioning and the only solution is for you to say take the device to an Apple Store to unlock, Oh my God, that means apple does not a solution to what it has built, If a person will encounter such a problem then it has to be taken to Apple Store? to unlock it. This is crazy. So Apple should come out to tell us that us in Africa and places with no Apple Store are not supposed to use apple devices. This is nonsense