iPhone Getting Hot? Here\'s Why Your iPhone Is Overheating and How to Fix It

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• Why Does Your iPhone Get Hot?

• How to Cool Down Your iPhone

• 8 Ways to Stop Your iPhone Getting Too Hot

Excessive heat is not good for your iPhone. It can cause more damage to your iPhone's internal components than you might realize, especially to the battery and processor. Here are several reasons why your iPhone gets hot and how you can prevent it from overheating.

Why Does Your iPhone Get Hot?

Like many other smartphones, iPhones don't have a heat sink or a fan to dissipate heat and keep temperatures down. That's why it's common for your iPhone to get a little warm from time to time. And yes, that's completely normal and generally not a cause for alarm.

However, there's a significant difference between a "warm" iPhone and one that you can barely hold due to it overheating.

Your iPhone heats up when you engage in certain activities for an extended duration. Common triggers include:

• Charging and using your iPhone simultaneously: This can cause your iPhone to overheat, and you may receive temperature warning messages like "Charging on hold" and "iPhone needs to cool down before you can use it."
• High ambient temperatures: Exposing your iPhone to high temperatures, especially direct sunlight, can cause it to overheat.
• Resource-intensive apps and processes: Performing heavy tasks like gaming, streaming high-quality videos, or using GPS and real-time navigation can strain your iPhone's resources and lead to overheating.
• Restoring your iPhone from a backup: Background processes and data transfers like these consume a lot of processing power, which in turn can temporarily cause your iPhone to overheat.
• Software and system issues: Software bugs and iOS updates can also lead to increased CPU usage and heat.
• An old or damaged battery: If you get a notification that suggests you should replace your battery, take the warning seriously. Navigate to Settings > Battery > Battery Health & Charging to check your battery health.

How to Cool Down Your iPhone

When you notice that your iPhone is too hot, taking quick action is crucial to avoid potential damage to its internal components. Here are some fixes you should try to resolve the issue immediately.

Remove the Case and Fan Your iPhone

The first step is to take off any protective case to let the heat escape faster. Place the iPhone in a cooler environment and ensure it's away from any heat sources. You can also gently fan or blow on your iPhone to help it cool down more effectively.

Cool your iPhone gradually because a rapid temperature change can harm it more than the heat itself. Never put your iPhone in a refrigerator, freezer, or any frigid place.

Stop Charging It Immediately

If your iPhone is heating up while charging, immediately unplug it from the charger. Charging can generate extra heat, so disconnecting it will help reduce the temperature. Wait a few minutes until it cools down before charging it again.

Stop Using Your iPhone to Let It Cool Down

The last but most important thing you can do is temporarily stop using your iPhone. Close any apps that you are using, press the Lock button to put your iPhone to sleep, and leave it alone for 10–15 minutes to cool down completely. Turning off your iPhone altogether can also help speed up the process.

8 Ways to Stop Your iPhone Getting Too Hot

Below are some tips and tweaks you can use to prevent your iPhone from getting too hot during everyday use. Not only will this help you avoid any overheating issues, but it will also potentially extend the battery's lifespan.

1. Don't Use Your iPhone While Charging

Marcus Mears III / Review Geek

When you charge your iPhone, it's already working hard to replenish the battery, generating heat as a byproduct of the hard work. Using the phone while charging puts additional strain on the processor and other components, which can lead to overheating.

This is especially true if you're doing something demanding, like playing resource-intensive games or making a video call. Unless it's an emergency and you really need to use your phone, it's best to wait until it's finished charging before using it again.

2. Restart Your iPhone

Restarting can resolve any temporary glitches or bugs that may cause your iPhone to overheat. It can also give your iPhone a little break and help cool it down.

To restart your iPhone, press and hold down the Power and Volume Up buttons until the "slide to power off" option appears. Then, slide that to the right to turn off your iPhone. After a few seconds, simply press and hold the Power button again to turn it back on.

You can also ask Siri to "restart my iPhone" and the voice assistant will shut down your device and start it up again, without you having to hold any buttons.

3. Keep Your iPhone Away From Heat or Direct Sunlight

Exposing your iPhone to direct sunlight or extreme heat can cause it to heat up fast, especially if you leave it in a hot car or on a sunny windowsill. Even brief exposure to extreme heat can cause damage, so it's important to be careful where you leave your iPhone.

It's also better not to use your phone for high-intensity tasks when it's hot outside or when it's in direct sunlight, since this can cause your iPhone to heat up even faster.

4. Use Official Apple or MFi-Certified Chargers

Using cheap third-party chargers may damage your iPhone's battery and cause it to get too hot. Always make sure to use an official Apple or a high-quality third-party charger that comes with the Made for iPhone (MFi) certification.

5. Turn Off Auto-Brightness

Auto-brightness is a convenient feature that automatically adjusts your iPhone's screen brightness based on the ambient light around you. However, this feature can also be energy intensive and may generate more heat. Therefore, disabling auto-brightness and manually adjusting it to a lower level can help extend your iPhone's battery life and reduce heat generation.

To turn off auto-brightness, go to Settings > Accessibility > Display & Text Size. Scroll down to "Auto-Brightness" and toggle it off. Then manually reduce your screen brightness.

6. Try Using Low Power Mode

Low Power Mode reduces background activity and performance to conserve battery life and keep your iPhone from overheating. To turn on Low Power Mode, go to Settings > Battery and enable "Low Power Mode."

The battery icon on the upper right of your iPhone will appear yellow to indicate it's in Low Power Mode. You can also enable Low Power Mode using the iPhone Control Center.

7. Update Your iPhone and Apps

Apple and app developers regularly release updates that include bug fixes and performance improvements. These updates may help to prevent your iPhone from overheating. That's why it's a good idea to keep your phone and apps updated, so you always have the latest version.

To check for software updates, go to Settings > General > Software Update.

For app updates, go to the App Store, tap your profile icon in the upper-right corner, scroll down to "Upcoming Automatic Updates," and tap "Update All."

8. 關閉後台應用程式刷新

後台應用程式刷新可讓應用程式在背景更新，即使您沒有使用它們。它會消耗電池和 CPU 資源，這可能會導致您的 iPhone 工作更加困難並產生更多熱量。

您可以透過前往「設定」>「關閉此功能」一般>後台應用程式刷新>後台應用程式刷新>關閉

您也可以僅針對在背景消耗大量資源的應用程式將其關閉，而不是完全關閉後台應用程式刷新。

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iPhone 變熱的原​​因有很多，通常是多種因素綜合作用的結果。所有智慧型手機都會變熱，但了解暖和熱之間的差異很重要。這些提示應該可以幫助您冷卻 iPhone 並防止其將來過熱。盡可能將 iPhone 放置在涼爽的環境中，避免長時間使用要求較高的應用程序，並管理後台應用程式刷新設定以減少熱量產生。此外，請確保使用能夠有效散熱的手機殼。

您可能會發現 iPhone 變熱的一個地方就是海灘。不要忘記格外小心保護您的 iPhone 免受沙子和鹽水的侵害。

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