Blinking folder with ? On start up
Can’t get past file folder icon with ? Or a circle with slash On start up. Tried PRAM reboot and doesn’t change
Question marked as
The "?" means your Mac cannot find a viable system to start up from:
About the screens you see when your Mac starts up - Apple Support
If you still see a question mark after waiting a few seconds, use Startup Manager to start up your Mac, then select your startup disk from System Preferences.
If a question mark appears after you install a software update, select your startup disk again using macOS Recovery.