Can’t Reinstall macOS after factory reset
I’m using 2017 MacBook Pro no Touch Bar. I followed all the instructions given by Apple and now I can’t reinstall macOS. I’ve tried Command+R, Option+Command+R, and Shift+Option+Command+R. When I try to install Catalina, I get pkdownloadError8. When I try to install Sierra, which is the OS my MacBook Pro shipped with, I get the message “An error occurred while preparing the installation. Try running this application again.” What should I do?
MacBook Pro 13", macOS 10.15