Fixing Screen Flickering on MacBook Air After Restart
## Direct Answer
To fix screen flickering on MacBook Air after restart, try resetting the System Management Controller (SMC) and the Power Management Unit (PMU) by shutting down your MacBook, locating the following keys, and then pressing the power button: Command (⌘) + Option (⌥) + Shift (⇧) + Power. Hold them for 10 seconds, then release. Press the power button again to turn on your MacBook.
## Step-by-Step Guide
1. **Shut down your MacBook**: Click the Apple menu and select Shut Down, or press the power button and confirm you want to shut down.
2. **Locate the necessary keys**: Find the Command (⌘), Option (⌥), Shift (⇧), and Power buttons on your keyboard.
3. **Reset the SMC and PMU**: Press the Command (⌘) + Option (⌥) + Shift (⇧) + Power buttons. Hold them for 10 seconds, then release.
4. **Press the power button again**: Turn on your MacBook.
5. **Update your MacBook’s operating system**: Go to System Preferences > Software Update to ensure you have the latest version of macOS.
6. **Reset the NVRAM**: Shut down your MacBook, then press the power button. Immediately hold down the Command (⌘) + Option (⌥) + P + R keys. Hold them for 20 seconds, then release.
## FAQ
– **Q: Why is my MacBook Air screen flickering?**
A: Screen flickering can be caused by outdated software, hardware issues, or problems with the System Management Controller (SMC) or Power Management Unit (PMU).
– **Q: Will resetting the SMC and PMU delete my data?**
A: No, resetting the SMC and PMU will not delete any of your data.
– **Q: How often should I reset the SMC and PMU?**
A: You should only reset the SMC and PMU when you’re experiencing problems like screen flickering.
– **Q: What if resetting the SMC and PMU doesn’t work?**
A: If resetting the SMC and PMU doesn’t fix the issue, try updating your MacBook’s operating system or resetting the NVRAM. If the problem persists, you may need to contact Apple support or visit an authorized repair center.
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