How to fix an iPhone 7 that keeps lagging after iOS 13 update

Sluggishness or lagging symptoms in mobile device usually appear among other indicators of performance problems. These symptoms can transpire as wear-and-tear symptoms. Memory-related issues like when the device storage is running low can also trigger similar symptoms to occur. Software bugs and malwares are also among the possible culprits. In worst cases, hardware damage is the root cause of the problem. Tackled in this post is a relevant issue on the iPhone 7 that keeps lagging after the iOS 13 update. Read on to find out how to speed up your iPhone in iOS 13.

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Troubleshooting an iPhone 7 that keeps lagging after iOS 13 update

The following procedures should render positive outcome, considering that your iPhone is free from any sort of physical or liquid damage. Try these methods to eliminate common software-related factors from the underlying cause.


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

Background apps that got corrupted and crashed after the iOS 13 update can adversely affect other apps and system functions of the phone. If these apps are kept open or suspended in the background, there’s a good chance for your device to show some adverse symptoms including sluggishness. This is when clearing all background apps or forcing background apps to close is necessary. Just follow these steps, if you haven’t already:

  1. Double-press the Home button to pull up the Apps Switcher or Multitasking screen. This screen contains the previews/cards of all applications you’ve recently used and left running in the background.
  2. Tap and drag an app card/preview to the top-corner of the screen. Doing so forces the app to end.

Once you’re done clearing all background apps, turn your iPhone off for a few seconds and then back on again. That should give your phone a quick breather and thereby helps clear out junk files cached in its internal memory.

ALSO READ: How to fix an iPhone 6s that’s stuck on blank screen after iOS 13 update


Second solution: Update your apps.

Apps that are acting up or performing unstable after a major system update are also among the possible triggers. Your device might have some trouble loading some of these apps and thus, it ended up performing very sluggish. If your phone has a stable internet access and is still responsive, follow these steps to manually check for and install pending app updates via App Store:

  1. From the Home screen, tap on the App Store icon to open the application.
  2. Tap on Today tab at the bottom. 
  3. Then tap on the user profile icon (Apple ID header) on the top right corner of the screen. You should see the account details. 
  4. Scroll down to the Available Updates section. 
  5. Tap on Update next to the YouTube app to install pending update for the app. 
  6. If multiple app updates are available, tap on Update All to update all apps simultaneously. 

Again, give your phone another restart after installing all app updates. This will ensure that all new system changes are properly implemented.


Third solution: Free up some space, if needed.

As mentioned earlier, insufficient storage can also affect the overall performance of your device. If your iPhone storage is running low, it may no longer be able to allocate more files or execute new process. Eventually, it will slow down and then lags from time to time. In worst cases, your device could end up crashing or not responding at some point. To fix the problem, clearing up some space is recommended. Just follow these steps to get started:

  1. From the Home screen, tap Settings.
  2. Tap General.
  3. Select iPhone Storage.
  4. Scroll down to view used and available memory on the phone.

If the available memory is less than 1 gigabyte, it means that your iPhone storage is low and thus you need to delete unnecessary contents including unused apps, old messages, and other files that are no longer useful.

ALSO READ: How to fix iPhone XR that’s not responding after iOS 13 update


Fourth solution: Install the iOS 13.1.2 patch to fix your iPhone 7 that keeps lagging after iOS 13 update.

A few days after the major update was released, Apple pushed a follow-up update the iOS 13.1.1 to address various types of iOS 13 bugs that plagued many iPhone users including restoring problems, battery drain, Safari problems and others. And just recently, another update is rolled out — the iOS 13.1.2, which contains bug fixes to another set of problems recently faced by iOS device owners. Installing this update could therefore potentially resolve lagging problems on your iPhone 7. Thus, you might as well consider installing the update and see how it works. You can use iTunes to manually update your device on a computer. Just follow these steps:

Be sure to use the latest version of iTunes on your computer to avoid system conflicts. Once you’re ready, connect your device to the computer with the Apple-supplied USB cable/Lightning cable. Then continue with these steps to start updating your iPhone:

  1. Connect your iPhone to the computer.
  2. Open iTunes on your computer then select your device.
  3. Click Summary to continue.
  4. Then click Check for Update.
  5. Click Download and Update, if an update is available.
  6. Enter your passcode to proceed.

Then follow the rest of the onscreen commands to update your device.

Don’t forget to reboot your iPhone after it’s finished installing the update. This will ensure that all new system changes and fix patches are properly applied.

Fifth solution: Erase your iPhone and restore factory default settings.

Performing a factory reset is also an effective permanent solution to address performance issues like sluggishness or frequent lags due to insufficient storage. This will erase everything from your iPhone system including saved data, hence creating backups if recommended beforehand. Once you’re all set, you can factory reset your iPhone in iTunes through these steps:

  1. Open iTunes on your computer, if you haven’t already.
  2. Connect your iPhone to the computer with the USB cable or Lightning cable that came with it.
  3. Wait for iTunes to recognize your device and when it does, you should see your iPhone’s icon in iTunes.
  4. Click to select your iPhone 7 when it appears in iTunes.
  5. Then navigate to the Summary section.
  6. Click on the Restore [iPhone] button.
  7. If prompted, click on the Restore button again to confirm.

This should prompt iTunes to start erasing your device and then installs the latest version of operating system available.


Last resort: Restore your iPhone from a previous iOS backup through iTunes.

To get started, connect your iPhone to the computer with the original USB cable or Lightning cable that came with it. While your device is connected, open iTunes on the computer and then continue with these steps to enter recovery mode and restore iOS from a recent backup:

  1. Press and hold both the Home button and the Top/Side button simultaneously.
  2. Keep holding the buttons until the Recovery Mode screen appears.
  3. Wait until you see the message prompt asking you to restore or update your device. 
  4. Select Update if you want iTunes to reinstall iOS on your phone without erasing any saved data. Otherwise, choose Restore to erase your device and restore from a recent iOS backup.

Follow the rest of the onscreen commands to finish restoring your iPhone and don’t disconnect it from the computer unless the restore process is complete.

Another system restore you can resort to in case a recovery mode restore doesn’t work is the DFU mode or Device Firmware Update mode restore. It’s the deepest type of system restore done on an iPhone with a corrupt iOS. A more detailed walk-through on how it’s done can be found on this site’s tutorials section. Just visit the iPhone 7 troubleshooting page and navigate to the tutorials section for more information.

ALSO READ: How to fix iPhone XR iOS 13 delayed touchscreen response issue


Still having the same problem with your iPhone 7 that keeps lagging after iOS 13?

What you’re dealing with could also be attributed to some faulty hardware. The fact that none of the given procedures is able to fix your iPhone makes it more possible that a damaged system component is present and thus your device needs physical repair. This is usually the case if there were previous incidents of dropping or liquid exposure on your iPhone. To rule this out, you can take your device to the nearest Apple-authorized service center in your area and ask an iPhone technician to run some thorough hardware check. 

Otherwise, report the problem to your device carrier or Apple support for further recommendations. Getting an iPhone upgrade is also among other options.

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