I have a 2013 iMac running Catalina. I'm trying to erase the disk and install an older version of Mac. But I cannot access any recover options. Command-R, Option-Command-R, and Option-Shift-Command-R on startup leads to a normal start up with no recovery options.
Earlier Mac models
The timing can be tricky using a wireless keyboard.
Use macOS Recovery on an Intel-based Mac - Apple Support
If you can not get into Recovery Mode using your wireless keyboard, plug in a USB Generic or PC keyboard and try with it.
The timing can be tricky using a wireless keyboard.
Use macOS Recovery on an Intel-based Mac - Apple Support
If you can not get into Recovery Mode using your wireless keyboard, plug in a USB Generic or PC keyboard and try with it.
If you are using a wireless keyboard, please try again with a USB wired keyboard.
I always have good luck when I press and hold any of those key combinations when I hear the startup chime.
Don't release them until you seek the Apple logo and progress bar.
No recovery options on 2013 iMac running Catalina
