Can't reinstall OS on MacBook Pro
Mac Pro
Mac Pro
1. Start up from macOS Recovery
To start up from macOS Recovery, turn on your Mac and immediately press and hold ...
Command (⌘)-R
Installs the latest macOS that was installed on your Mac.
Option-⌘-R
Upgrade to the latest macOS compatible with your Mac.
Thank you for trying to help but as the post states; l already tried that and several more similar options,:
Can't reinstall OS on MacBook Pro