Why is my screen turning black and?
Why is my screen display question mark sign?
crwdns2934109:0crwdne2934109:0
Why is my screen display question mark sign?
crwdns2934109:0crwdne2934109:0
Your drive is missing it’s operating system which is why you see the question mark
Review this If your Mac starts up to a question mark
If you can’t get the system to re-install macOS you will need to find someone to help you, visit an independent Mac repair shop.
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