重置Intel MacBook的SMC可以解決電源、電池、風(fēng)扇或顯示器等硬件問(wèn)題。當(dāng)遇到合蓋無(wú)反應(yīng)、電池不充電、風(fēng)扇異常高轉(zhuǎn)速、電源鍵無(wú)效或亮度調(diào)節(jié)失效等問(wèn)題時(shí)，可嘗試以下步驟：1. 關(guān)閉MacBook；2. 連接電源適配器；3. 同時(shí)按下左側(cè)Shift Control Option鍵和電源鍵並保持10秒；4. 鬆開(kāi)按鍵後重新開(kāi)機(jī)。重置後風(fēng)扇行為、電池顯示、亮度與睡眠設(shè)置可能變化，若問(wèn)題仍在，可進(jìn)一步嘗試重置NVRAM/PRAM，但注意此方法不適用於M1及後續(xù)機(jī)型。

如果你're having issues with your Intel MacBook—like problems with power, battery, fans, or display—you might need to reset the SMC (System Management Controller). It's a common troubleshooting step that can help resolve hardware-related issues.

When Should You Reset the SMC?

You don't need to reset the SMC every day. But if you're experiencing any of these symptoms, it might be worth trying:

• The MacBook doesn't respond correctly when you open or close the lid.
• Battery isn't charging properly, even with the charger connected.
• Fans are running loudly without a clear reason.
• Power buttons aren't responding as expected.
• Displays aren't adjusting brightness automatically.

It's especially useful if you've already tried restarting your Mac and checking for software updates.

How to Reset the SMC on an Intel MacBook with a Non-Removable Battery

Most Intel MacBooks from around 2010 onward have non-removable batteries, so the process is slightly different than older models. Here's what to do:

1. Shut down your MacBook completely.
2. Plug in the power adapter—make sure it's connected to both the wall and your Mac.
3. On the keyboard, press Shift Control Option on the left side, along with the Power button , all at once.
4. Hold those keys for about 10 seconds.
5. Release all keys, then press the Power button to turn your Mac back on.

This resets the SMC and lets your system reinitialize its hardware controls.

What Happens After Resetting the SMC?

After resetting the SMC, you might notice a few changes:

• Fan speeds may adjust differently at first.
• Battery readings could show a different estimate until the system recalibrates.
• Display brightness and sleep settings might reset to default values.

If the issue persists after the reset, you might want to try resetting the NVRAM or PRAM as well. That's another low-level setting area that can affect how your Mac boots and handles peripherals.

A Few Things to Keep in Mind

• Not all issues are fixed by the SMC reset—it's not magic, but it's a good early step.
• If you have an Apple Silicon (M1 or later) Mac, the SMC no longer exists in the same way, and this method won't apply.
• Don't force quit apps or interrupt the shutdown process before doing this—it helps to start from a clean state.

Basically, resetting the SMC is straightforward and safe. If you're seeing odd behavior with your hardware, it's definitely worth trying before jumping into more complex fixes.

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