Trainman58 Said:
"3 year old MacBook not turning on: Trying to clean out back to factory settings. There is no macOS start up disk. Tried disk utility to erase disks and reinstall macOS but still not working. Now I am getting a black screen with a file and question mark. Please help!"
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Troubleshooting a Mac with a Flashing Question Mark:
Three Things...
1. Go here: If a Flashing Question Mark Appears when you Start your Mac - Apple Support
II. Mount the Drive:
Boot into Recovery Mode (Intel or Silicon). Then, using Disk Utility, see if the Hard Drive is seen. If it is, then see if you need to click the “Mount’ button for it. Try rebooting once more. If of no success, then click unmount button, and then the mount button. Try rebooting once more.
III. If Neither of the Above Works...
Reinstall the macOS:
Go Here: How to reinstall macOS from macOS Recovery - Apple Support. Important: Be certain to create a backup of your Mac prior to all of this. That way, you can have something to restore from the Mac from, should anything go wrong with the reinstall. Once reinstalled, try this once mor