Clean OS Install on Broken Screen
My MacBook Pro screen is broken and currently using with External Display, I want to upgrade it to macOS Catalina. the problem is I am unable to see what is going in without the laptop screen in order to clean install when I try to boot with Option + CMD + R.
I also tried in clamshell mode with Power, External Display and Keyboard connected. nothing shows up.
PS: Replacing the screen is not an option for me right now.