Why does the iPhone get hot?
Unlike computers, iPhones do not have a cooling fan system. Therefore, it is completely normal for the device to become slightly warm when operating. However, if the device heats up to a level that makes it uncomfortable to hold or a temperature warning appears, users should review the cause to avoid affecting the performance and durability of the device.
Here are some common reasons why your iPhone is overheating:
Charge and use at the same time
The habit of using the iPhone while charging is one of the leading causes of overheating. At this time, the device must both receive power and continuously process tasks, putting great pressure on the processor and battery. This can easily cause the iPhone to display the message "iPhone needs to cool down" and automatically turn off some functions to protect the hardware.
High ambient temperature
Using or leaving iPhone in high outdoor temperatures, such as in direct sunlight, in a closed car, or at the beach, can cause your device to heat up quickly. iPhone is designed to work best between 0–35°C (32–95°F), so if it exceeds this temperature range, it may automatically reduce performance to cool down.
Run heavy applications
Using resource-intensive applications such as high-graphics games, watching 4K videos , or using GPS continuously can cause the processor and GPU to work at high intensity. As a result, the heat generated increases sharply, leading to the phenomenon of the device overheating and rapid battery drain.
Restore from backup
After restoring data from iCloud or iTunes, your iPhone needs time to resync apps, photos, and settings. This process consumes a lot of system resources, so it is common for the device to heat up in the early stages, and it is usually temporary.
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| Why does the iPhone get hot? |
Software error or iOS update
Some new versions of iOS sometimes cause unusual background activity, causing the CPU and system processes to run more than usual. This can cause your device to run hot, even if you’re only doing light tasks. In many cases, this will be fixed in the next update.
Battery is old or has problems
Batteries that degrade over time can cause your device to overheat. When your battery can no longer hold a charge or is worn out, it can generate more heat while charging or using it. You can check your battery health in Settings > Battery > Battery & charging health to know when it's time to replace it.
Effective solution to cool iPhone when it overheats
When detecting an iPhone overheating abnormally, users need to handle it quickly to avoid damaging the battery or internal components. Here are some simple but effective measures to cool the device:
Remove iPhone case
Most cases, especially thick ones or those made of plastic or rubber, can retain heat, making it difficult for your iPhone to dissipate heat. Removing the case exposes the device to the surrounding air, which helps dissipate heat more quickly.
Move iPhone to a place with stable temperature
As soon as you notice that your device is hot, move it to a cool place away from sunlight or high temperature areas such as in a car or near a stove. Never put your iPhone in the refrigerator or immerse it in water as this can cause serious damage.
Stop charging and let your iPhone rest
If your iPhone is charging, disconnect it immediately. Stop all other activities on your device, such as playing games, watching videos, or using GPS. Locking your screen or turning it off for a few minutes will help your device cool down and become stable again.
8 ways to prevent iPhone from overheating, protect performance and device life
It is normal for an iPhone to get warm during use. However, if the device regularly overheats, it will not only make you uncomfortable, but also reduce performance and affect battery life, and even risk hardware damage. To limit this situation, take the initiative to apply the following tips:
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| Effective iPhone cooling solution when the device is too hot. |
1. Limit using iPhone while charging
When charging, the iPhone generates heat. If you continue to use it to play games, make video calls, or run heavy applications while charging, the temperature will increase rapidly. This not only makes the device susceptible to overheating, but also affects the battery life in the long run.
2. Restart your device periodically
After a long period of operation, the system may experience temporary errors or background applications that cause the CPU to work harder. Restarting helps free up memory, clear suspended processes, and reduce heat effectively.
3. Avoid placing the device in high temperature places.
Do not leave your iPhone in direct sunlight, especially in a car on hot days. High outside temperatures will make it difficult for the device to dissipate heat, easily triggering a temperature warning or causing the iPhone to shut down to protect its components.
4. Use genuine charger or Mfi standard charger
Unknown chargers can provide unstable current, causing the device to overheat and potentially pose a fire or explosion risk. Always prioritize using Apple-certified accessories or high-quality products from reputable brands.
5. Turn off Auto-Brightness
This feature uses the light sensor to continuously change the screen brightness, contributing to the consumption of system resources. You can turn it off by going to Settings > Accessibility > Display & font size > Turn off “Auto-brightness” to make the device run cooler.
6. Enable Low Power Mode when needed
This feature helps limit background activities, reducing processor performance when not needed, thereby reducing the device temperature. Go to Settings > Battery > Low Power Mode to enable when needed.
7. Update iOS and apps regularly
Apple and developers are constantly releasing updates to fix bugs, improve performance, and optimize device temperatures. Keeping your iPhone and apps up to date will help reduce the risk of overheating.
8. Turn off “Background App Refresh”
Many apps automatically refresh data even when you don't have them open. This causes the system to constantly run and generate heat. You can turn it off by going to Settings > General > Background App Refresh > Off .
Additional notes:
If your iPhone continues to get unusually hot despite the above measures, check the battery, memory, and running apps. Sometimes hardware problems or buggy apps can be the cause. Don't let your device overheat continuously, as this will cause long-term damage to its performance and durability.
Source: https://baoquocte.vn/6-thu-pham-khien-iphone-qua-nhiet-va-cach-ha-nhiet-an-toan-321722.html
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