1. Unplug all attached accessories
2. Check MacBook power
3. Check screen brightness level
4. Perform a power cycle
Press and hold the power button for at least five seconds then release the button. Now you have forced the Mac to return to off-state. Wait for five seconds then press the power button again to reboot your MacBook.
Alternatively, you can press the Control, Command and Power buttons simultaneously to force your Mac to restart again. If performing a power cycle can’t fix the MacBook Pro black screen problem, go on to the next step.
5. Reset NVRAM/PRAM
NVRAM (non-volatile random-access memory) and PRAM (Parameter RAM) are the memory that contains user-defined data such as screen brightness, keyboard backlight setting and sound volume setting. If this data is corrupted, you could get a black screen on MacBook Pro.
To reset the NVRAM/PRAM, follow these steps:
- Hold the power button for at least 5 seconds until the MacBook is off.
- Press the power button to turn on the MacBook.
- Hold the Control, Option, R, and P four keys simultaneously for 15 seconds.
- Release all four keys.
- Your Mac should reboot and you have reset the NVRAM.
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