How can I fix issue with black screen on my MacBook?

First, let’s see if this issue happens in Safe Mode:

1. Shut down your Mac.
2. Press and hold the power button on your Mac. As you continue to hold the power button, your Mac turns on and loads startup options. When you see Options, release the power button.
3. Select your startup disk. It's named Macintosh HD, unless you changed its name.
4. Press and hold the Shift key, then click the “Continue in Safe Mode” button below your startup disk.
5. Log in to your Mac. You might be asked to log in again.

If the strange behaviors do not occur, then it may possibly be a software issue.

If the issue doesn't continue in safe mode:

Leave safe mode by restarting your Mac normally, then try to reproduce the issue.

If the issue doesn't return, it might have been resolved by the other things that safe mode did at startup, such as checking your disk and clearing caches.

If the problem persists, then let’s try this:

• Software Update.
• Use Apple Diagnostics to test your Mac.

If none of those ideas work, then I recommend service.

Service Checklist:

• Mac service pricing.
• Check AppleCare Coverage.
• Get your Mac ready for service.

Click ▶︎ Start a Service Request. ⚛️

Need more help?

• Call 1-800-APLCARE.
• International Support.
• Mac Support.
• Mac User Guide.

Click ▶︎ Check Repair Status. 🔧

Good luck! 👋🏼😉

Hi,

A black screen on a MacBook can be caused by a few different issues, ranging from simple glitches to more serious hardware problems. To fix it, try restarting your MacBook, resetting the SMC or NVRAM, checking for external display issues, or potentially reinstalling macOS. 

Here's a more detailed breakdown of potential solutions:

1. Restart your MacBook:

• Hard restart: Press and hold the power button for about 10 seconds to force a shutdown, then turn it back on.
• Restart from the Apple menu: If the screen is responsive enough, choose "Restart" from the Apple menu. 

2. Check Display and Brightness:

• Increase brightness:
• Make sure the brightness isn't turned down all the way. Press the brightness keys on your keyboard to increase it. 
• External display:
• Disconnect any external displays to see if the issue is with the external monitor or connection. 

3. Reset SMC and NVRAM:

• SMC Reset:
• This controls low-level hardware functions. Shut down your MacBook, then press and hold Shift-Control-Option and the power button simultaneously for 10 seconds. Release all keys and power on. 
• NVRAM/PRAM Reset:
• This resets certain settings, including display settings. Restart your MacBook while holding down Option-Command-P-R keys until you hear a second startup chime. 

4. Check for External Devices:

• Unplug all unnecessary external devices (printers, external hard drives, etc.) as they might be interfering with the display. 

5. Reinstall macOS:

• If the above steps don't work, you can reinstall macOS from macOS Recovery. This will require you to restart your MacBook and access Recovery Mode (usually by holding down Command + R during startup). 

6. Seek Professional Help:

• If none of the above steps work, it's possible there's a hardware issue (like a faulty backlight or display cable) and you should seek help from an Apple Store or authorized service provider.