How to fix an iPhone 8 that easily gets warm or overheats after installing an update [Troubleshooting Guide]

Software updates are primarily aimed at keeping a device free from bugs and performing at its best. Aside from bringing in new features, device manufacturers also push updates with fix patches to address common device issues as well as for security enhancements. These are the main reasons why it’s highly recommended to keep your device system up-to-date.

Nonetheless, there are just instances when a device would end up having trouble after installing a new update. In fact, you can find several post-update issues reported by many smartphone owners following an update installation. While not everyone ended up having problems after updating, others aren’t just lucky enough to deal with a post-dilemma from doing the same thing.

Among the widespread issues encountered by iOS owners following an iOS update include rapid battery draining and overheating. These emerged among the recurring common post-update issues since the prior iOS updates Apple has released. And these continue to manifest even in the latest version for iOS 11.

If ever you’ll encounter the same issue after installing the latest iOS version on your iPhone 8, feel free to refer to these subsequent walkthroughs. These consist of a few potential solutions and workarounds that are used to deal with the iPhone 8 overheating issue, occurring from a new iOS update installation. Read on to learn more.

But before we actually move on to our troubleshooting, if you have other issues with your phone, then visit our troubleshooting page as we’ve already addressed some of the most common problems with this device. In case you need more help with your problem, fill up our iPhone issues questionnaire and hit submit to contact us.

First solution: Clear all background apps then reboot your iPhone.

If you haven’t closed any apps you’ve recently used while installing an update on your device, then there’s a tendency that any of these apps has become corrupted and gone rogue. Rogue apps can rev up the phone processor even when the device is idle. This then makes the device heat up and then overheats. To make sure this isn’t the trigger, clear any background apps from your iPhone 8 with these steps:

  1. Double-tap the Home button to view the list of your most recently used apps. These apps are in standby mode and still running in the background.
  2. To close an app, swipe up on the app’s preview.

Do the same thing to close the rest of your background apps. Once all background apps are cleared, restart your iPhone. A restart also dumps errant cache from the memory that might have triggered certain apps to go rogue and eventually cause the device to heat up so quickly.

You can do the usual restart (soft reset) or force restart your iPhone 8 with these steps:

  1. Press and quickly release the Volume Up button.
  2. Then press and quickly release the Volume Down button.
  3. Finally, press and hold the Side/Power button until the Apple logo appears.

Restarting your iPhone won’t delete any of your saved data on the internal memory. Thus you won’t lose any personal information from doing so.

Second solution: Install pending app updates.

Another way to keep the apps working properly after updating iOS is to update them. App developers typically push minor or major updates for their apps soon before or after a new iOS version is released. This is done to ensure that their apps will remain stable and working properly with the new iOS platform on the device. Thus, this can also help prevent apps from causing problems, including overheating. To check for pending app updates on your iPhone 8, follow these steps:

  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. Tap the Update button next to an application to update apps individually or tap the Update All button on the upper right of the screen to install all pending app updates at once.

Allow your device to finish updating apps and then restart it when done. Restarting the phone will dump any errant cache from the internal memory and refresh the system as well. This can prevent apps from acting up.

Third solution: Check the battery usage and evaluate apps.

It’s also important to view the battery usage on your iPhone 8 and find out exactly which apps and services are using the most of your battery and how. If you see any apps with an unusual amount of power consumption, then that app must be among the culprits to deal with. Here’s how to view this information on your phone:

  1. Tap Settings from the Home screen.
  2. Scroll to and tap Battery.
  3. Wait for the Battery Usage details to populate.
  4. Tap on the Show Detailed Usage button (Clock icon) to view more information on the breakdown and foreground and background power usage.
  5. To get a broader look at power consumption over time, tap on Last 7 Days.

If you see any apps like Facebook for example, with 4% on screen and 40% on background, then it’s an indication that something has gone wrong. The app is likely going rogue after the recent system update and that has eventually triggered the device to overheat. In that case, force closing the rogue app will likely get things back to normal.

Fourth solution: Reset all settings on your iPhone.

Some updates may tend to override some system settings automatically when implemented and if this happens, there’s a chance that some options or settings would end up causing conflicts and device issues. To clear this out, you can reset and restore the default system settings on your iPhone 8 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 settings reset.

Allow your device to carry out settings reset and restore the defaults. After the reset, you can configure individual settings and enable necessary features according to your previous preferences, before the overheating issue instigates.

This reset won’t result to data loss because only the system settings are reset. Thus all saved data on the internal memory remain intact.

Fifth solution: Factory reset or master reset your iPhone 8.

Among the last options to consider when dealing with a persistent overheating issue on your iPhone is a factory reset or master reset. This will wipe everything from your device including bugs and complex errors that may have resulted to this problem. Please note though that this reset will delete all your personal information, downloaded apps and other saved data on the phone. Should you wish to continue, back up all critical data you have and then continue with these steps to erase and restore your iPhone 8 to its factory defaults:

  1. Tap Settings from the Home screen.
  2. Tap General.
  3. Scroll to and tap Reset.
  4. Select the option to Erase all content and settings. This will delete all settings, downloads, and other saved files from your device.
  5. If prompted, enter your device passcode to continue.
  6. Then tap to confirm factory reset.

Allow your device to complete the system reset and then restore the default factory settings. You will know when the reset is finished when the phone restarts. By then you can proceed with the initial setup process. Simply follow these onscreen instructions to enable necessary features and configure options and settings according to your preferences. Any complex system errors should already be gone after performing a master reset, thus your iPhone should no longer overheat by then. Otherwise, you will need to consider other options.

Other options

You may have to consider resorting to a recovery mode or DFU mode restore. Performing an iOS restore is usually needed when dealing with more complicated system errors that might have triggered the processor to constantly work, become exhausted and then overheats. Just don’t forget to back up all your important files as they will also be deleted in the process.

Meanwhile, if you suspect that the overheating issue on your iPhone 8 is attributed to hardware damage, then you can have it checked by an iPhone technician instead. In that case, you’ll need to take your device to an Apple-authorized service center in your place. Don’t forget to avail for warranty, if necessary. For further recommendations, contact your carrier or Apple Support and let them know of the issue that you’re going through.

Connect with us

If you need more help with the use of certain functions and features of the Apple iPhone 8 smartphone, feel free to visit our Tutorial Page. There you can find a list of how-to contents, step-by-step tutorials, as well as answers to FAQs regarding iPhone 8. If you have other concerns or encountered some troubles while using the phone, you can reach us through this form. Just be sure to tell us more details of the problem or device issue(s) you may have and we will be more than happy to assist you further.

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