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Beat the Heat: Effective Solutions to Fix iPhone 12 Overheating Issues

Is your iPhone 12 getting uncomfortably warm? You're not alone. Overheating is a common issue plaguing some iPhone 12 users, impacting performance and battery life. But fear not; there are ways to cool things down and get your device functioning optimally!

This complete guide explores the potential causes of iPhone 12 overheating and offers various solutions to tackle the problem. Let's dive in and ensure your iPhone stays cool as a cucumber.

Effective Solutions To Fix Iphone 12 Overheating Issues

Key Takeaways

  • Using demanding apps, software glitches, third-party chargers, weak cellular signal, and extreme temperatures can lead to overheating.
  • Update your iPhone regularly, use MFi certified chargers, manage app usage, avoid direct sunlight, and ensure proper battery health.
  • Lower screen brightness, disable background app refresh, and manage location services to reduce heat generation.
  • Reset all settings or perform a full restore if basic troubleshooting fails. Seek professional assistance if needed.
  • Contact Apple Support or visit iFixScreens for expert diagnosis and repair services if overheating persists.
  • Develop good habits like updating software, avoiding extreme temperatures, and monitoring battery health to prevent overheating issues.

Understanding the Cause: Why Does My iPhone 12 Overheat?

Why Does My Iphone 12 Overheat

Several factors can contribute to your iPhone 12 overheating. Here are some of the most common culprits:

  • Demanding Tasks: Extensive use of resource-intensive apps like games, navigation, or video editing can push the processor and graphics capabilities, leading to heat generation.

  • Software Issues: Bugs or glitches within iOS can make the device to work harder than usual, resulting in overheating.

  • Background App Refresh: Apps constantly refreshing in the background can drain battery life and contribute to heat buildup.

  • Cellular Connectivity: A weak cellular signal can force your iPhone to work harder to maintain a connection, leading to overheating.

  • Extreme Temperatures: Using your iPhone in hot environments can cause it to overheat more easily.

  • Faulty Charger or Cable: A damaged or non-Apple certified charger can cause overheating during charging.

  • Hardware Problems: In rare instances, hardware malfunctions, such as a failing battery or internal component, could be the culprit.

Combating the Heat: Solutions to Fix iPhone 12 Overheating

Solutions To Fix Iphone 12 Overheating

Before resorting to drastic measures, let's explore some readily available solutions:

Swap the Substandard Case

Numerous inexpensive and bulky cases lack heat dissipation, leading to overheating problems. Ensure your case boasts enhanced heat reduction to maintain device coolness. Explore our curated collections of top iPhone 12 series cases, covering clear, bumper, stylish, and leather options. For improved heat dissipation, please browse through our selections.

Opt for MFi Certified

Chargers Using MFi (Made for iPhone, iPad, and iPod) certified chargers is imperative for several reasons. Firstly, certified chargers ensure full compatibility, enabling faster and more efficient charging for your iPhone. Secondly, authorized chargers are better equipped to handle potential threats such as overheating, overcurrent, and short-circuiting.

Conversely, fake or uncertified chargers offer slow charging and are prone to issues like overheating and short-circuiting. They can also trigger the "Accessory may not be supported" error. Hence, it's crucial always to steer clear of uncertified chargers.


Adjust Settings:

  • Reduce Brightness: A brighter screen consumes more power and generates more heat. Lowering the screen brightness can significantly help.
  • Disable Background App Refresh: This stops apps from continually refreshing in the background, minimizing battery usage and heat production. Navigate to Settings > General > Background App Refresh, then toggle it off for individual apps or altogether. 
  • Disable Location Services for Unnecessary Apps: Many apps don't require constant location access. In Settings > Privacy > Location Services, deactivate location services for apps that don't need them.
  • Manage Bluetooth and Wi-Fi: If you're not actively using Bluetooth or Wi-Fi, turn them off to conserve battery and reduce heat generation.

Control App Usage:

  • Identify Resource-Heavy Apps: Monitor battery usage to pinpoint apps that consume excessive power. Go to Settings > Battery and check the list. Consider limiting usage or finding alternatives for power-hungry apps.
  • Force Quit Idle Apps: Close apps you're not actively using by swiping up on them in the App Switcher (double-click the Home button or swipe up from the bottom on newer iPhones).

Software Updates:

  • Install the Latest iOS Update: Outdated software can sometimes contain bugs contributing to overheating. Keeping your iPhone updated with the latest iOS version ensures optimal performance and addresses potential issues. Navigate to Settings > General > Software Update to check for and install updates.

Storage Management:

  • Free Up Storage SpaceA cluttered device can impact performance and lead to overheating. To free up space, offload unused apps, delete unnecessary photos and videos, and utilize iCloud storage for backups—go to Settings > General > iPhone Storage for a detailed breakdown.

Advanced Solutions for Persistent Heating Issues

Advanced Solutions For Persistent Heating Issues

If the essential solutions don't resolve the overheating problem, consider these advanced troubleshooting methods:

Reset All Settings:

Resetting all settings to factory defaults can sometimes resolve software glitches causing overheating. This won't erase your data, but you must re-enter Wi-Fi passwords and customize some settings. Go to Settings > General > Reset > Reset All Settings.

Restore iPhone as New:

If a reset doesn't work, consider a full restore. This wipes all your data and settings, giving your iPhone a clean slate before backing up your data to iTunes, iCloud, or a third-party cloud storage service. This process can be done through iTunes on a computer or directly on your iPhone (Settings > General > Reset > Erase All Content and Settings).

Contact Apple Support or iFixScreens:

If troubleshooting fails, consider seeking professional assistance. Reach out to Apple Support via their website or visit an Apple Store for further diagnosis and possible repair solutions.

At iFixScreens, you will get fast, reliable, and affordable iPhone 12 repair services. Our expert technicians can diagnose the exact cause of your overheating issue, whether it's a faulty battery or other hardware malfunctions. We use high-quality parts and offer a 180 day warranty on our repairs, giving you peace of mind. Visit your nearest iFixScreens location or schedule a mail-in repair for a quick and efficient solution to get your iPhone 12 back in top shape.

Important Considerations:

Important Considerations To Fix Iphone 12 Overheating Issues
  • Jailbroken Devices: Overheating issues might be related to incompatible tweaks or modifications if your iPhone is jailbroken. Consider un-jailbreaking your device to see if the problem persists.

  • Hardware Issues: While less likely, overheating could indicate a hardware malfunction

Final Thoughts

Following the solutions outlined in this guide, you should be well-equipped to tackle overheating issues on your iPhone 12. Remember, prevention is key! Develop good habits like managing app usage, updating software, and avoiding extreme temperatures.

If the overheating persists after trying all the software-based solutions, don't hesitate to contact Apple Support. They can provide expert diagnosis and potential hardware repairs.

With vigilance and these handy tips, you can keep your iPhone 12 functioning optimally and prevent it from turning into a burning brick!


Q. What are the common causes of iPhone 12 overheating?

A. Several factors can contribute to iPhone 12 overheating issues. These include using demanding apps, overheating during charging, third-party chargers, software glitches, and leaving your iPhone 12 in direct sunlight.

Q. How can I prevent my iPhone 12 from overheating?

A. To prevent your iPhone 12 from overheating, update your phone regularly, avoid using third-party chargers, close unused apps, keep your iPhone 12 out of direct sunlight, and ensure that your 12 Pro is running the latest Apple software updates.

Q. How does the battery health affect the iPhone 12 overheating?

A. The battery health of your iPhone 12 can impact its propensity to overheat. If your battery is damaged or not functioning correctly, it may lead to overheating issues. Monitor your battery health regularly to prevent overheating problems.

Q. Can using certain apps cause my iPhone 12 to overheat?

A.  Yes, using demanding apps or running multiple apps simultaneously can strain your iPhone 12 and result in overheating. Close unused apps and avoid running resource-intensive applications for extended periods.

Q. How important is keeping my iPhone 12 updated with the latest software updates?

A. Keeping your iPhone 12 updated with the latest Apple software updates is crucial in addressing known issues, bugs, and vulnerabilities that can lead to overheating problems. Regular updates can improve device performance and stability.

Q. Are there specific settings on my iPhone 12 that can help prevent overheating?

A. Adjusting settings such as screen brightness, disabling location services for unnecessary apps, turning off background app refresh, and limiting notifications can help reduce the likelihood of iPhone 12 overheating.

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Ravi Shah

About the author

Ravi Shah

Ravi is the head of Content Strategy at iFixScreens Corporate. With over a decade of experience writing technical content for his readers, Ravi has helped thousands of readers with helpful content, tips, and tricks. He mainly writes content related to gadget repairs, such as iPhones, Smartphones, tablets, and laptops.

Question? Send me an email info@ifixscreens.com