After a factory reset was attempted all that appears on the display is a blinking folder icon with a question mark at the center. The four key reset (OPTION+COMMAND +P+ R) was attempted several times without success.
Hello MLBson,
We would like to see how we can help you with your Mac not starting up as expected. A folder with a flashing question mark means that your startup disk is no longer available or doesn't contain a working Mac operating system. Follow the steps in this link, and get back to us with your results: If your Mac starts up to a question mark
Cheers!
Blinking foldlder icon on screen after chime.
