Cannot dowload macos on macbook pro
I've bought used macbook pro (mid 11) and wanted to reboot system.
I disabled all functions and tried to reboot whole system. Previous owner disabled his appleId. Also he disconnected this macbook from his appleid profile. But I cannot download MacOs from Appstore (there is no such object (Yosemite). Also I downloaded from the official web file system but macbook doesn't see USB. What should I do?