How to fix iTunes error 9039 Cannot sync music library

iTunes is a media player developed by Apple Inc. and used as a client application for iOS devices. It syncs and backs up your media library, Internet radio stations, photos, videos, and other documents. It also allows users to transfer data, update the iOS version, restore the iOS version, and more. However, when using the iTunes tool on Windows or Mac, users may get a 9039 Unknown Error. If you also encounter this error, check out this troubleshooting guide.

This particular error occurs when users try to connect their iPhone to iTunes through Windows or Mac, or even when they try to add music to their library. Some unsuccessful users get the error message “There was a temporary problem with your request. There was an unknown error.” So, without wasting any time, let’s proceed with the next steps.

What’s the cause of the 9039 iTunes error Cannot sync your music library

What's the cause of the 9039 iTunes error Cannot sync your music library

It turns out that one of the most common reasons that can cause this problem is a problem with the account you are currently using on iTunes. Several users affected by the same problem have confirmed that they were able to resolve it by logging out of iTunes and logging back in.

If you get this error when trying to add music to your Apple Music library and you have many different playlists purchased outside of Apple Music, you may see an iTunes error code 9039 because you have exceeded the 25,000 song limit that Apple currently applies to music purchased outside of iTunes.

How to fix iTunes error 9039 Unable to sync music library

How to fix iTunes error 9039 Unable to sync music library

Log back into your iTunes account

The first thing you can do if there is an iTunes 9039 error on your computer is to reconnect to your iTunes account. The iTunes account you’re using likely has a temporary problem that causes error code 9039 when you add music or connect devices to iTunes. This happens more often than you think and has already been cited as a major factor in various iTunes problems.

The following steps will show you how to effectively reconnect to your account:

  1. On your computer, go to your desktop and launch the iTunes app.
  2. In iTunes, click the Accounts tab in the menu bar at the top of the screen.
  3. Then click on Exit.
  4. Finally, click the Accounts tab again and select Sign In to log back into your account.
  5. After logging in, try restarting iTunes.
  6. Then add some songs to your library or connect your device to iTunes and see if the error code keeps appearing.

Update iTunes

The next thing you can do to resolve your iTunes problem is to check for an update. Perhaps the current version of iTunes on your computer is outdated and has issues that are causing the 9039 error code.

This is another reason that occurs more often than you think and is usually accompanied by numerous user posts on various Apple support forums.

To check for an update in iTunes, do the following:

  1. First, go to the Help tab in the menu bar of the iTunes app.
  2. After that, click Check for updates.
  3. Finally, iTunes checks to see if an update is available for the current version of the software installed on your computer.
  4. If it is, follow the instructions on the screen to update the version of iTunes on your device.
  5. Then restart your computer and try the previous action in iTunes that caused error code 9039 to see if the problem continues on your computer.

Updating your iCloud music library

If you are an Apple Music subscriber, you can try this method on your computer. Several users have reported that the 9039 error code disappeared on their computer after updating the iCloud music library.

Here’s how to update your iCloud music library, step by step:

  1. First, launch the iTunes app on your computer from your desktop.
  2. Then click the “File” tab on the menu bar.
  3. Finally, click on “Library” and select “Update iCloud Music Library.”
  4. Now, wait for the process to finish and restart your computer.
  5. Test iTunes again by downloading the song or connecting your AirPlay device to see if iTunes error code 9039 has been fixed.

Frequently Asked Questions

If iTunes says it can't back up your device because of an error, check to see if you have the latest version of iOS installed. Then open the App Store on your iOS device, click on Updates and check that all apps on your device are updated. Delete the current backup and try again to make sure the problem is resolved.

Turn off your iCloud music library, then turn it back on. Log out of the iTunes Store, then log back in. Check iTunes first to see if the song can't be downloaded. Also, if you have added a song to your library from the Apple Music catalog, it may no longer be available on Apple Music.

Restart your iPhone: Restart your iPhone, iPad, or iPod touch. Make sure you have a good Wi-Fi or cellular connection; Settings -> iTunes and App Store -> Cellular must be enabled to use Apple Music. Turn off iCloud Music Library under Settings -> Music. Open the Music app and check it.

  1. Exit iTunes.
  2. Press the Windows key on your keyboard.
  3. Click the magnifying glass icon or the search box.
  4. Show hidden files.
  5. Open the Apple Computer folder, then the iTunes folder.
  6. Right-click the "SC Info" folder and choose "Delete" from the context menu.
  7. Restart your computer.
  8. Open the iTunes.
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Mark Ginter is a tech blogger with a passion for all things gadgets and gizmos. A self-proclaimed "geek", Mark has been blogging about technology for over 15 years. His blog,, covers a wide range of topics including new product releases, industry news, and tips and tricks for getting the most out of your devices. If you're looking for someone who can keep you up-to-date with all the latest tech news and developments, then be sure to follow him over at Microsoft.