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How to fix an iPhone 7 that keeps overheating after updating iOS to version 11.4.1 [Troubleshooting Guide]

Overheating problems are usually surfacing among other iOS issues faced by users after installing a new update either for apps or iOS. In fact, this has been a dilemma since the release of prior iOS versions. Unfortunately, it still exists among other post-update problems to-date. Highlighted below are some applicable workarounds and simple solutions to a post-update overheating issue affecting the iPhone 7 variants. The normal heat temperature for an iPhone is between 0º and 35º C (32º to 95º F).

Although there are some factors that can cause your device to change its behavior to regulate its temperature, like when the ambient temperature is very low or high. Your device normally gets warm when charging, updating, or using heavy applications for hours. If you just updated to iOS version 11.4.1 and later noticed that your iPhone 7 gets extremely warm (warmer than 35º C), then you can try any of these subsequent methods to clear software errors that might have triggered the processor to continuously work and it gets exhausted.

But before anything else, if you have another issue with your phone, drop by our troubleshooting page as we have already addressed hundreds of issues reported by the owners. Odds are that there are already existing solutions on our website or at least, there are similar problems we already fixed. So, try to find ones that are similar or related to your problem. If you need further assistance, however, feel free to contact us by filling up our iPhone issues questionnaire.

First solution: Clear all running apps then reboot your iPhone 7.

Rogue apps are among the usual culprits especially background apps. If you’ve recently used or opened apps and then update your iPhone without closing them, then that increases the chance of these apps to become corrupted and go rogue. As remedy, clear any or all background apps and then soft reset or reboot your iPhone 7. Here’s how:

  1. Press the Home button twice quickly. Doing so will launch a new screen containing a list of recently used apps that aren’t closed.
  2. Swipe up on each app preview to clear or force quit individual running apps.

After clearing all background apps, soft reset or reboot your iPhone 7 to clear its memory from errant cache and likewise to free up some space. Here’s how a soft reset is done:

  1. Press and hold the Power button for a few seconds until the Slide to Power Off command appears.
  2. Then drag the power off slider to the right to shut down your iPhone completely.
  3. After 30 seconds, press the Power button again until the Apple logo appears.

Allow your phone to finish booting up and then test to see if it still overheats.

Second solution: Install pending app updates on your iPhone 7.

Aside from background apps, outdated apps can also go rogue after updating iOS. This is usually because the app no longer meet the minimum system requirements and therefore needs to be updated. If you haven’t set your apps to auto-update, then you’ll need to do it manually. Here’s how to manually check for and update apps on your iPhone 7:

  1. Tap the App Store icon from the Home screen.
  2. From the App Store main screen, tap the Updates icon at the bottom right. A list of apps with pending updates then shows up on the screen.
  3. To install update individually, the Update button next to an app. Doing so will install pending update for that app.
  4. If multiple app updates are available, tap the Update All button on the upper right of the screen to update all apps simultaneously.

Again, reboot your iPhone after updating apps to ensure all new changes are properly applied and likewise to prevent the system from acting up.

Third solution: Check the battery usage and uninstall rogue apps on your iPhone 7.

Battery draining and overheating usually instigate alongside. If it’s not a bad battery, then something in the iPhone system likely caused the processor to be exhausted. As a result, the phone is overheating and then it follows the battery that’s rapidly draining. One way to determine the cause of the problem is by checking which apps or services are using up the most of your iPhone power in a given period of time. Any app that posted an unusual level of power consumption is most likely the culprit. Here’s how to check on this data:

  1. Tap Settings from the Home screen.
  2. Tap Battery.
  3. Scroll down to the Battery Usage section then see which apps or services are using the most of your iPhone’s battery.

You can set a specific period of time to get the exact battery usage data about the app’s battery usage. If you see any app with unusual number of power consumption in 7 days or 24 hours, then that app is likely among the triggers. In that case, you can try disabling the app first and see if the phone still overheats without the app running. If it doesn’t overheat, then you’ll need to delete that app. Here’s how:

  1. Tap and hold on any app icon from the Home screen.
  2. When the icons start to wiggle, tap the X on the corner of the app you want to uninstall.
  3. If prompted, confirm action by tapping Delete.

If uninstalling the app isn’t an option for you, then try to fix the app instead.

Fourth solution: Reset all settings on your iPhone 7.

System settings that are misconfigured or configured in a way that pushes apps and services to work continuously can also be the underlying cause. This can happen and usually happens when the recently installed iOS update is programmed to override system settings on the phone automatically. There’s a higher chance that some settings would end up having conflicts and results to a problem. To clear this out, try to reset all settings on your iPhone 7 with these steps:

  1. Tap Settings from the Home screen.
  2. Tap General.
  3. Scroll to and tap Reset.
  4. Select Reset all settings from the given options.
  5. If prompted, enter your device passcode to continue.
  6. Then tap to confirm system settings reset.

Unlike a factory reset, this reset won’t affect saved data on the phone storage so you don’t need to create backups beforehand.

Fifth solution: Restore your iPhone 7 in recovery mode using iTunes.

Performing an iOS restore in recovery mode can be considered among the last possible solution if the problem continues after applying the previous methods. Your device might have suffered some fatal system errors after the update and the system probably ended up being totally corrupted. In that case, you’ll need to apply more advanced solutions including a recovery mode restore. To do so, you will have to secure a computer either Windows or Mac OS, with the latest iTunes software installed. Once you’re all set, follow these steps to restore your iPhone 7 in iTunes via recovery mode:

  1. Connect your iPhone to your computer using the supplied USB connector or Lightning cable and then open iTunes.
  2. While your iPhone is connected, do a force restart by pressing and holding on the Side/Power button and Volume Down button simultaneously for a while. Do not release the buttons when the Apple logo appears because you will need to put your device in recovery mode. You can release the buttons as soon as you see the Connect to iTunes screen.
  3. When prompted with the option to Update or Restore, select Restore.
  4. Wait while iTunes attempts to reinstall iOS and download the software for your device.

The download usually takes 15 minutes.  If the download exceeds 15 minutes, your iPhone will exit the Connect to iTunes screen. If that happens, just let the download finish and then go back to the previous steps to get to the Connect to iTunes screen and enter recovery mode again.

If your phone still overheats after performing a recovery mode restore, then you can proceed and carry out a DFU mode restore through iTunes. DFU stands for Device Firmware Upgrade, the deepest type of system restore done on an iPhone. It’s usually the last ditch-solution to try on if all else failed to fix system problem including major data corruption. For a more detailed walkthrough on how to carry out a DFU mode restore on an iPhone 7, visit our troubleshooting page for iPhone 7, then navigate to the tutorials section.

Other options

If your iPhone 7 continues to overheat even after performing an iOS restore through recovery mode or DFU mode, then you may have to consider opting for service this time. Although the phone starts to overheat after installing a new update to iOS, it doesn’t always mean that the new update is to blame. Your device may have already obtained some sort of physical or liquid damage on the battery or other relevant components and it just so happened that the symptoms begin to emerge after the update. To confirm this, you will need a technician’s aid. That said, take your iPhone to the nearest Apple Genius bar in your place and have it diagnosed carefully by an iPhone technician instead.

For other recommendations and further support, you may contact your carrier or Apple Support and escalate the problem for additional inputs.

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