MacBook won't start, unable to turn on - solution

MacBook won't start. What to do if your MacBook won't turn on?

Your MacBook Pro won't power on? If your MacBook, MacBook Pro, or MacBook Air won't start, there are some steps you can try to resolve the issue.

Here is a guide to possible solutions/troubleshooting if your MacBook won't start:

1. Check power supply

Check charger: Make sure the power adapter and charging cable are in good condition. Test if the LED on the charger (for older models) lights up.
Test outlet: Connect the charger to a different outlet to ensure power is flowing.
Let the battery charge: Leave your MacBook connected to the charger for at least 15 minutes before trying to turn it on again.

2. Reset hardware

Reset SMC (System Management Controller):
- If your MacBook has an Intel processor and the battery is non-removable:
  1. Hold Shift (left) + Control + Option + the power button for 10 seconds.
  2. Release the keys and then press the power button again.
- For MacBooks with Apple Silicon, you don't need this step.
Reset NVRAM/PRAM (only for Intel MacBooks):
- Press Command + Option + P + R at startup and hold the keys for about 20 seconds.
Use the fingerprint button/power button
Newer MacBook Pro or MacBook Air models usually start automatically when the display is opened. If you accidentally disabled this feature, the MacBook can only be started via the fingerprint button/power button.

3. Check the screen

Adjust brightness: Ensure the screen brightness is not set to the lowest level.
Connect an external monitor: Test if an external monitor displays an image to check if the issue is with the display.

4. Start MacBook in safe mode

For Intel devices: Hold the left Shift key while turning on the MacBook.
For non-Intel devices: Hold the Power Button while turning on. When the hard drive appears, hold the left Shift key and select the hard drive to start safely.

This will load only the essential programs. If the start works in safe mode, the problem may be due to faulty software.

5. Use diagnostic tools

Apple Diagnostics:
- Press the D key when turning on to start the built-in diagnostic tool. Follow the instructions to find possible hardware issues.
Internet recovery mode:
- For Intel devices: Hold Command + Option + R while turning on the MacBook. This allows you to reinstall the operating system directly from Apple's servers.
- For non-Intel devices: Hold the power button/fingerprint button when turning on.

6. Remove external devices

Disconnect all connected devices such as USB sticks, external hard drives, or monitors. These could be blocking your MacBook from booting up.

7. Second Apple device for firmware recovery

If your MacBook needs a firmware repair (often with Apple Silicon devices or severe software issues), you can restore it using a second Apple device.

https://mac-store24.com/blogs/apple-prof-tips-und-tricks/apple-firmware-wiederherstellen-bildschirm-schwarz

8. Seek Professional Help

If nothing works, contact Apple Support or take your MacBook to an authorized service provider. Bring the charger and, if available, your purchase receipt.