During phone usage, sometimes your iPhone warms your hands literally, making you quite concerned. So, why does an iPhone get hot? Does it affect the device's lifespan? How to effectively fix an iPhone overheating? Check out the article below for answers.
1. Identifying the causes of iPhone overheating and rapid battery drain
In cases where the phone isn't running heavy apps or tasks but still frequently overheats, it's crucial to investigate why the iPhone is overheating.
Typically, this is due to reasons such as:
- iPhone battery malfunction: A faulty or damaged battery can cause the iPhone to maintain high, unstable temperatures, even appearing on the latest purple iPhone 14 Pro Max 1TB model.
- Charger plug, charging cable issues: If you're using a charger plug or charging cable with issues (counterfeit, fake), the temperature on the iPhone may be higher than normal and adversely affect the internal hardware.
- Continuous device usage over long periods: Using the iPhone frequently for extended periods makes the phone prone to overload and overheating.
- Using the iPhone in abnormal temperature environments: Sometimes, the iPhone overheats because users purchase unofficial products that don't cope well with the irregular temperature changes in Vietnam. Hence, extremely hot, humid, or cold weather can disrupt the device's heat dissipation, leading to overheating.
- Many background tasks and apps running on the device: Why is the iPhone overheating? Typically, iPhones overheat when users connect to Wifi, 3G, or enable GPS unnecessarily, as well as fail to close background running apps.

2. Signs of excessive iPhone 'heat' during usage
Typically, the ideal temperature range for an iPhone is between 0 and 45 degrees Celsius. If it operates above this temperature, the iPhone may emit warning signals or temporarily suspend operations to cool down.
Additionally, you can identify when the iPhone is overheating through some simple actions. For example, touching the back of the device frequently. If it feels warm, it indicates your iPhone is overheating unusually.
However, some cases arise from the phone having to process numerous tasks, leading to overheating. For accuracy, users should employ temperature measuring software on the iPhone. This helps you monitor and record this index, making it easier to detect when the iPhone is overheating unusually for timely action.

3. Suggestions for 10 quick fixes to cool down an overheating iPhone safely
To address the issue of an iPhone overheating, you can apply the following methods:
3.1. Turning off background apps helps cool down the iPhone
One of the quick remedies when an iPhone overheats is to close running background apps. This action is extremely simple; you just need to double-click the Home button for iPhone 6, iPhone 7, iPhone 8, or swipe up from the bottom of the screen for iPhone X series and later. Then, proceed to close the apps, and you're done.
3.2. Rebooting the device helps reduce iPhone heat
Another way to alleviate iPhone overheating is by rebooting the device. This method is both easy to perform and effective in fixing issues on the phone. For iPhone X and later models, users should press and hold the power button and either volume up or volume down button to access the power off slider. Once the device cools down a bit, power it back on for a reboot.
3.3. Cooling down method for an overheating iPhone: Remove the phone case
If your phone gets hot while charging due to the phone case, you should remove the case to allow airflow to the back and the heat dissipation slots of the device. This way, your iPhone will also cool down quickly.

3.4. Fix for overheating iPhone battery: Place the iPhone in a cool area
When using the iPhone frequently, the device tends to overheat, leading to sluggish performance. To address this, you should stop using it and place the iPhone in a cooler location. It's important not to place the iPhone under pillows or in direct sunlight as this exacerbates the overheating issue.
3.5. Cool down the iPhone by enabling power-saving mode
Using power-saving mode helps reduce the system's power, avoiding excessive operation. This is also a quick remedy when the iPhone overheats.
To enable power-saving mode, users can follow these steps: tap on the 'Settings' menu > select 'Battery' > turn on 'Low Power Mode'.

3.6. Avoid using iPhone while charging
Playing games while charging is a common cause of iPhone overheating. Users should abandon this habit. This ensures not only personal safety but also prolongs the longevity of the phone.
3.7. Turn off 3G/4G, GPS, Bluetooth when not needed, prioritize WiFi
In reality, prolonged use of 4G/5G mobile data or GPS, Bluetooth applications can cause the iPhone to heat up. Therefore, in areas with WiFi, you should prioritize using WiFi networks and disable the use of 4G/5G. When there's no need to use the phone anymore, turn off all network connections to reduce overheating during prolonged usage.
3.8. Disable app refresh feature to cool down iPhone
App refresh is a feature that consumes a lot of mobile data and causes your iPhone to heat up. Therefore, immediately disable this feature with the following steps to ensure good phone performance:
- Step 1: Open iPhone and tap on the 'Settings' menu.
- Step 2: Then, select 'General'.
- Step 3: Navigate to 'Background App Refresh'.
- Step 4: There are two options. One is to disable refreshing for some apps you feel unnecessary and keep useful apps. The other is to disable the entire 'Background App Refresh' function.

3.9. Enable auto-brightness mode
Auto-brightness not only helps conserve battery on your phone and optimize usage needs but also serves as a quick remedy when the iPhone overheats. This is because setting the phone to maximum brightness drains the battery quickly and increases the temperature.
3.10. Restore factory settings to rescue overheating iPhone
If you've tried some basic solutions for overheating iPhone battery but haven't seen improvement, users should try cooling down by restoring the device to its factory settings. This helps eliminate pre-set configurations accumulated during usage.
Here are the steps:
- Step 1: Go to 'Settings' and choose 'General'.
- Step 2: Tap on 'Reset'.

- Step 3: Continue to tap on 'Reset All Settings'.

Note: When applying this method, it's advisable to back up your data to prevent loss!
4. Lesser-known iPhone Usage Tips to Avoid Overheating
In addition to the above methods to troubleshoot iPhone overheating, to prevent abnormal iPhone temperature increase, you should remember and implement the following small tips:
- It's advisable to install software from reputable sources, highly rated, and less likely to damage the device.
- Avoid installing unnecessary software.
- Regularly clean your iPhone.
- Do not use low-quality components, cables, and chargers.
- Avoid frequently plugging the charging pin into multiple power outlets as this can cause short circuits and overheating.
- Break the habit of using the phone while charging.
Hopefully, through the above article, users have understood why iPhone gets hot, as well as the 10 simplest troubleshooting methods. If you suspect that overheating is due to mobile phone components, you should take the device to a reputable repair center for quick and effective assistance.