![]() ![]() Select your startup disk, press and hold the Shift key, and select Continue in Safe Mode on the next page. Wait 10 seconds, press and hold the Power button again until the startup options page comes on the screen. Press and hold the Power button and wait for your Mac to shut down. Boot Apple Silicon-Based Mac into Safe Mode Release the Shift key when the login screen appears on your Mac’s display. Turn on your Mac (press the power button) and immediately hold the Command + Option + P + R keys.Wait for 10 – 30 more seconds for your Mac to shut down completely. Hold down your Mac’s power button until the screen goes off.The steps to perform an NVRAM reset will vary based on the model or generation of your Mac. Luckily, there’s a way to reset the NVRAM to factory default, and that could resolve these issues. ![]() Your Mac’s NVRAM is probably corrupt if it displays the question mark folder on start-up, gets stuck on a black screen, or exhibits other weird start-up errors. The settings stored in the NVRAM may vary depending on your Mac’s model and devices connected to your Mac. When you make changes to your Mac’s start-up disk selection and other basic system settings (sound, display, date and time, port configuration, etc.), your macOS saves them in the NVRAM. The Non-Volatile Random Access Memory (NVRAM) is a storage component of Mac computers that keeps important settings and information.
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