How to fix iPhone 8 error 4013 when updating [troubleshooting guide]

One of the commonly encountered errors when updating an iOS device via iTunes is error 4013. In this short troubleshooting episode for the #iPhone8, we address this bug once and for all. We hope you’ll find this material helpful.

Before we proceed let us remind you that you can contact us by using the link provided at the bottom of this page. When describing your issue, please be as detailed as possible so we can easily pinpoint a relevant solution. If you can, kindly include the exact error messages you are getting to give us an idea where to start. If you have already tried some troubleshooting steps before emailing us, make sure to mention them so we can skip them in our answers.

Why iTunes 4013 bug occurs?

Error 4013 can occur due to a number of reasons. The common causes that many iPhone owners reported includes the following:

How to fix iPhone 8 error 4013

Since there’s a number of possible reasons for this error, you’ll need to narrow down the list in order to get down to the problem. These are the suggested troubleshooting steps and solutions options that you can do.

Solution #1: Make sure that iTunes runs the latest version

Installing the latest version of iTunes on your computer is the first logical troubleshooting step. Majority of update errors are caused by outdated iTunes software so be sure that this is not the one causing your problem.

If you have a Mac, these are the steps to update iTunes:

  1. On your Mac, launch the App Store.
  2. Click Updates at the top of the window.
  3. If any macOS or iTunes updates are available, click Install.
  4. Once you’ve installed the update for iTunes, restart the computer and try to update your iPhone again.

If you have a Windows, follow these steps to update iTunes:

  1. On your PC, open iTunes.
  2. From the menu bar at the top of the iTunes window, choose Help > Check for Updates.
  3. Follow the prompts to install the latest version.
  4. Once you’ve installed the update for iTunes, restart the computer and try to update your iPhone again.

If there’s no prompt that appears for an update, that means that iTunes is already running the latest version.

Solution #2: Force restart your iPhone 8

Some bugs are only temporary and are fixed by simply stopping the system temporarily. At times, force restarts can interrupt bugs to cause them to stop for good. To see if force restarting your iPhone 8 will work:

  1. press and quickly release the Volume Up button.
  2. Press and quickly release the Volume Down button.
  3. Then, press and hold the Side button until you see the Apple logo.

Solution #3: Delete some content on your iPhone 8

Sometimes, iPhones encounters update errors if there’s not enough storage space for an operating system update. To ensure that this is not the reason for your iPhone 8 error 4013, try to delete some apps or move photos, videos, and other non-system critical files to your computer or to iCloud. Afterwards, attempt to update your device again.

In order to manage your iPhone’s storage:

  1. Tap Settings.
  2. Tap General.
  3. Tap Storage & iCloud Usage.
  4. Tap Manage Storage.

Solution #4: Update your iPhone 8 using another lightning cable

Your iPhone 8’s lightning cable, just like any other component, can go bad. If you another known working cable to use, make sure to use that before attempting to update your device via iTunes again. Here’s how:

  1. Install the latest version of iTunes on your computer.
  2. Connect your device to your computer.
  3. Open iTunes and select your device.
  4. Click Summary, then click Check for Update.
  5. Click Download and Update.
  6. If asked, enter your passcode.

Solution #5: Factory reset your iPhone 8

In some cases, wiping an iPhone with factory reset can fix iTunes update error. Before you do this solution though, make sure to back your iPhone’s contents. We recommend that you do it via iCloud to avoid losing them should your iTunes trouble won’t get fixed.

To factory reset your iPhone 8:

  1. Open Settings app.
  2. Tap General.
  3. Tap Reset.
  4. Tap Erase All Content and Settings.
  5. If prompted, enter your passcode.
  6. Tap Erase iPhone.

Solution #6: Try Restore instead of Update

If your iPhone still refuses to update at this point, try to restore from an old backup and see what happens. iPhone backups are stored in either your computer (where you install iTunes), or on the cloud. Depending on where your backup is located, here are the steps to restore your iPhone.

Restore your iPhone 8 from iCloud backup:

  1. Factory reset your iPhone 8.
  2. Turn your your iPhone back on.
  3. Follow the onscreen setup instructions until you reach the Apps & Data screen. On that screen, tap the option to Restore from iCloud Backup.
  4. Sign in to iCloud using your Apple ID and password.
  5. Select a backup you prefer to load. Be sure to look at the date and size of each backup files and select the most relevant. The transfer begins after you select a backup file.
  6. If prompted with the message that requires a newer version of iOS, follow the onscreen instructions to update iOS.
  7. If asked to sign in, enter your Apple ID account credentials to restore your apps and purchases.
  8. Stay connected to the Internet and wait for the progress bar to complete. It could take a while for it to complete depending on the size of the backup and the network speed. Usually it may need a few minutes up to an hour to finish. If by any chance you’ll get disconnected from your Wi-Fi network, the progress will pause until your iPhone is reconnected.

Restore your iPhone 8 from iTunes backup:

  1. Go to your computer and open iTunes.
  2. Connect your iPhone to the computer with the supplied USB cable.
  3. If prompted, enter your device passcode or click on the option to Trust This Computer and then follow the onscreen instructions.
  4. Locate your iPhone 7 Plus from the list that appears in the iTunes screen and then click on it.
  5. Go to the Summary panel, and then click on Restore [your device name].
  6. Click on Restore again to confirm action.
  7. Wait for iTunes to erase your device and install the latest operating system.

Solution #7: Ensure that the computer you’re using runs the latest operating system

Apple’s proprietary services that iTunes uses may not work properly or at all if the computer’s operating system is outdated or too old. Make sure that you Mac or PC is up-to-date to avoid this inconvenience.

Solution #8: Use another computer

Lastly, should the issue continue after doing all of the above, consider updating your iPhone 8 using another computer. You’ve already covered all the possible causes so the issue might lie on the computer you’re currently utilizing.

Engage with us

If you happen to have a problem with your own iPhone, let us know about it and we will do our best to post them and their solutions  in our upcoming articles. You can use this link to contact us for assistance. We can’t guarantee an answer to every question but rest assured that we will exhaust everything on our end to help you.

Be as detailed as possible when describing your problem to help us diagnose your issue easily. If you can include error messages, popups, attempted troubleshooting steps, and circumstances leading to the problem, that would be very helpful.