Startup disk restart
Hi..i formatted my New MacBook Pro 2020 and after I dawn loaded Catalina os the startup disk page appear with nothing to select option now I am facing this problem , what should I do to Seattle this problem
I'm not sure what steps you followed to format, Please look into this detail: Learn more about when and how to erase.
A help on How to reinstall macOS from macOS Recovery - Apple Support
or
I would suggest you to Contact Apple Support.
See a list of Apple phone numbers around the world.