Get the latest tech news
How to troubleshoot a Mac that won’t boot
Don’t panic if your Mac doesn’t boot; there are ways to fix it.
For an even more comprehensive reinstall, you can wipe the system drive completely (including apps and data) and then put a fresh version of macOS on top. If you’re not even getting to a blank screen or any kind of symbol when your computer boots up and there are no signs of life (no lights and no whirring), then you might be looking at a more fundamental problem with your hardware. You can get assistance over live chat or via a phone call, book an appointment at a local Apple Store, or schedule a repair — and hopefully find a way to get your Mac working again.
Or read this on The Verge
