April 20, 2024

If your MacBook Air keeps shutting down after just a few seconds, it can be frustrating and disruptive to your work.

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Resetting SMC on Different Mac Models

To reset the System Management Controller (SMC) on various Mac models, the process differs slightly. For MacBook Air (2018 and later), MacBook Pro with Touch Bar, and iMac Pro, follow these steps:

1. For laptops with the Apple T2 chip:
– Shut down the Mac.
– Press and hold the power button for 10 seconds.
– Release the power button, then wait a few seconds before pressing it again to turn on the Mac.

2. For Mac desktop computers:
– Shut down the Mac.
– Unplug the power cord.
– Wait 15 seconds, then plug the power cord back in.
– Wait another 5 seconds before turning the Mac back on.

3. For older MacBook models without the Apple T2 chip:
– Shut down the Mac.
– Press and hold Shift + Control + Option keys, along with the power button, for 10 seconds.
– Release all keys and the power button, then press the power button to restart the Mac.

Resolving Power Issues by Resetting PRAM

To resolve power issues causing your MacBook Air to shut down after a few seconds, try resetting the PRAM:

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1. Shut down your MacBook Air.

2. Turn on your MacBook Air and immediately press and hold the Option, Command, P, and R keys simultaneously for about 20 seconds.

3. Release the keys when you hear the startup sound for the second time.

After resetting the PRAM, your MacBook Air should hopefully no longer shut down unexpectedly. If the issue persists, you may need to seek further assistance from Apple Support or visit an Apple Store for professional help.

Performing macOS Updates or Reinstallation

If your MacBook Air is shutting down after a few seconds, it may be due to a software issue. One way to fix this is by performing macOS updates or a reinstallation.

To update macOS, go to the Apple menu and select “System Preferences.” From there, click on “Software Update” to see if any updates are available. If there are updates, follow the on-screen instructions to install them.

If updating doesn’t solve the issue, you can try reinstalling macOS. To do this, restart your MacBook Air and hold down Command + R while it boots up. This will take you to the macOS Utilities menu. From there, select “Reinstall macOS” and follow the prompts to reinstall the operating system.

Performing macOS updates or a reinstallation can help resolve software-related issues that may be causing your MacBook Air to shut down unexpectedly.

Checking for and Removing Malware

  • Run a malware scan:
    • Open your preferred antivirus software.
    • Initiate a full system scan to check for any malware or viruses.
    • Follow the prompts to remove any detected threats.
  • Use Malwarebytes:
    • Download and install Malwarebytes from their official website.
    • Run a scan with Malwarebytes to search for any additional malware.
    • Remove any threats found by Malwarebytes.
  • Reset Safari or Chrome:
    • If you suspect malware from your browser, reset it to default settings.
    • Open Safari or Chrome and locate the settings menu.
    • Find the option to reset the browser settings to default.
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Disconnecting Peripheral Devices to Troubleshoot

MacBook Air with disconnected peripheral devices

Disconnect External Devices: Start by disconnecting all peripheral devices such as external hard drives, USB hubs, and SD cards from your MacBook Air.

Restart the MacBook Air: After disconnecting the external devices, restart your MacBook Air to see if it still shuts down after a few seconds.

Check for Improvements: If the issue persists even after disconnecting the peripheral devices, try resetting the System Management Controller (SMC) on your MacBook Air.

Reset SMC: To reset the SMC, shut down your MacBook Air, then press and hold the Shift + Control + Option keys on the left side of the built-in keyboard, and the power button simultaneously for 10 seconds.

Reconnect Devices: After resetting the SMC, reconnect your MacBook Air to the peripheral devices one at a time to identify which one might be causing the issue.

Seek Professional Help: If the problem continues even after trying these troubleshooting steps, it may be best to consult with Apple Support or visit an Apple Store for further assistance.

Monitoring Battery and Mac’s Overall Health

To ensure your MacBook Air doesn’t shut down after a few seconds, monitor the battery health regularly. Check the battery status in the system preferences to see if it needs to be replaced. Additionally, monitor the overall health of your Mac by checking for any software updates or background processes that may be causing the issue.

If your MacBook Air continues to shut down unexpectedly, try resetting the System Management Controller (SMC). This can help resolve power-related issues. Another option is to reset the NVRAM/PRAM by restarting your Mac and holding down Option + Command + P + R keys until you hear the startup sound twice.

If the problem persists, it may be related to thermal management. Make sure your Mac is not overheating by checking the temperature and ensuring proper ventilation. You can also try cleaning the fans to prevent overheating issues.

In some cases, the issue may be related to hardware problems. If you suspect this is the case, it’s best to contact Apple Support for further assistance or take your MacBook Air to an authorized service provider for professional help.

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Preventive Measures: Saving Energy and Reading Logs

Preventive Measures: Saving Energy and Reading Logs
Article Title Fix MacBook Air shuts down after few seconds
1 Ensure laptop is properly ventilated to prevent overheating
2 Adjust power settings to conserve energy and prevent sudden shutdowns
3 Regularly check system logs for any errors or warning messages

FAQ

Why does my MacBook air keep shutting off?

Your MacBook Air may be shutting off due to hardware issues such as faulty RAM or a damaged SSD, or it could be caused by overheating. Additionally, software problems like running outdated apps or an outdated version of macOS, or possibly malware, could also be causing the issue.

How do I stop my Mac from turning off after 30 seconds?

To stop your Mac from turning off after 30 seconds, you can adjust the Energy Saver settings. Click on the Apple icon, go to System Preferences, then select Energy Saver. Look for the option to prevent your Mac from automatically sleeping when the display is off, check the box, and save your changes.

Why does my Mac shut down every time I close it?

Your Mac shuts down every time you close it to save the battery from draining. This is a built-in feature, where the MacBook goes into hibernation mode when the cover is closed. If your MacBook Air suddenly turned off and won’t power on again, it could be a separate issue that needs to be addressed.

Why does my MacBook air keep dying?

Your MacBook Air may keep dying due to reasons such as having too many applications running in the background, overly demanding battery settings, or potentially having malware on your Mac.

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