You can update your iPhone using iTunes, but an error could stop you. You can get a message that states, “The iPhone could not be restored. An unknown error occurred (9).” You can also come across a similar error with a different numeric code. This can be 4005, 4013, or 4014. These errors appear if you try to restore your backup from iTunes too. Just in case you’re seeing other numeric codes, you can refer to Apple’s support page for troubleshooting tips.

There are many ways to resolve these errors. However, what works for others may not work for you. It is a matter of trial and error. You’re in luck if you get it right with the first solution.


To get around error 9, you can try doing these steps first:

  • Confirm if the latest version of iTunes is installed on your computer. You will need to launch iTunes to verify this. For Mac users, click on “iTunes” from the menu bar and select “Check for Updates”. For Windows, click “Help” from the menu bar > “Updates”. Make sure to restart your computer after the installation is complete.
  • Force restart your iPhone. The method would depend on the model of your iPhone.

For iPhone X, 8 and 8 Plus. Press and release the Volume Up button. Do the same for the Volume Down button. Push and hold the Power button and wait for the Apple logo to appear.

For iPhone 7 and 7 Plus. Push and hold the Power and Volume Down keys simultaneously until you see the Apple logo.

For iPhone 6s and earlier. Push and hold the Home and Power buttons simultaneously and wait for the Apple logo to appear.

  • Check if your iPhone is properly connected to your computer. First off, make sure that you’re using a functioning cable. A faulty cable can cause errors to occur. It is highly recommended that you use an authentic Apple cable. Next, check if the cable is loose or unplugged. Disconnect and connect your iPhone again. You can also try plugging in your iPhone with a different USB port.

It is possible that iTunes error 9 still persists after doing the three tips above. This is the case if an underlying issue is preventing iTunes from running as it should. This calls for more drastic measures.

Use another computer. If you can access another computer with iTunes installed, you may update your iPhone using that computer. If the update pushes through with no error, this tells something about the computer you first used. Its security software, anti-virus or firewall might be keeping iTunes from functioning well.

Update your OS. Your computer might be running on an outdated operating system. This may lead to performance issues and several errors. Mac users can search for updates on the App Store. Windows users can head to Windows Update.

Tweak the configurations of your firewall. iTunes needs to connect to Apple’s servers when you try to update your iPhone. Security software may recognize iTunes’ attempt to communicate with external servers as a threat. If at any point the communication is blocked, an error occurs.

You should make sure that your firewall is not blocking iTunes. Different operating systems have varying firewall settings, so it’s worth checking. You may have to change some configurations to remove restrictions pertaining to iTunes.

You can also check your anti-virus to see if iTunes is blocked. Make sure that the software is updated as well.

Install a system recovery software. A system recovery software can be used to address common iPhone errors. These include the infamous blue screen of death and non-stop rebooting. Such software can fix iTunes issues as well. These tools usually download a matching firmware package for your phone to resolve device issues. And there are completed guide to help you fix the iPhone errors such as fix iPhone error 9.


If you’re trying to restore a backup, you can download a data recovery software instead. Some data recovery software can access your iTunes backup and restore your files for you. If the error on iTunes is the only thing keeping you from getting a hold of your files, a recovery software should do the trick. Data recovery software also have the capability to scan your iPhone’s memory and retrieve deleted files. Many options are available on the net. You just have to find an effective software that’s hopefully easy on the wallet too.