Top 9 Ways to Fix iPhone Error 4013/4014/9/3914/4/11/10

The iPhone could not be restored. An unknown error occurred (4013).

The iPhone could not be restored. An unknown error occurred (4014).

Getting unknown iPhone error 4013/4014 when trying to upgrade your iPhone 13/12/11/X/8/8 Plus to iOS 11.3? iTunes is a great tool to restore and update iPhone but sometimes you'll get unknown errors such as iPhone error 4013/4014 due to following reasons:

  • iTunes is not updated to the latest version or not installed correctly.
  • Weak Wi-Fi signals or Internet connection.
  • Broken or damaged USB cable.
  • Faulty USB port.
  • Less storage space on your iPhone.
iphone error 4013

Following are the top 9 ways to fix iPhone 13/12/11/XR/X/8/8 Plus (iTunes) error 4013/4014. The first 4 ways are mainly to fix the problems caused by iTunes while the last 5 ways are mainly to fix issues related to your iPhone.

How to Fix iPhone Error 4013/4014

Way 1. Update iTunes to Latest Version

Check if the latest version of iTunes is installed on the Mac or other computer. If not, update iTunes to the latest version.

update itunes

Way 2: Change USB Cable & USB Port

A faulty cable and port could cause iPhone error 4013 as well. So try a different cable and use another port. Or if it is possible, change to another computer.

Way 3: Check the Internet Connection

An iPhone error 4013 may encounter if the restore or update process is interrupted by weak Wi-Fi signals or Internet connection, so make sure that you have well network connection. Disconnect Wi-Fi both on your computer and iPhone and try to connect them again later on, or try another network if it is there.

Way 4: Force Restart Your iPhone

If the iPhone error 4013 is caused by your iPhone, try to force restart your iPhone following steps below:

For iPhone 6 and older Models:

Press the home button and the power button at the same time. Keep pressing the buttons until you see the Apple logo and let the restarting process finish.

For iPhone 7 and 7 Plus:

Press the Power button and volume down button simultaneously and hold them. Let go of the buttons when you see the Apple logo on the screen.

For iPhone 8 and later Models:

For the new models, you have to quickly press the volume up button, and then follow the same process with volume down button. At last, press the side button and hold it until the screen turns off and the Apple logo pops up on the screen.

force restart iphone

Way 5: Clear iPhone Storage Space

The iPhone error 4013 may appear if there isn't enough space on your iPhone to accommodate a new update. You can either clear apps and delete iPhone data manually, or use Tenorshare iCareFone to transfer large files to computer to free up storage on your device.

Way 6: Factory Reset Your iPhone (Data Loss)

Factory reset iPhone is an easy way to solve most iPhone restore and update errors. Considering it will erase all data on your device, so think twice before you performing this method. Go to Settings>General>Reset and select Erase All Content and Settings. Enter your passcode and tap on Erase iPhone

erase iphone

Way 7: Restore Your iPhone Using Recovery Mode

If methods above didnot work or your iPhone unfortunately get stuck during updating or restoring, try to put your iPhone X/8 into recover mode and then restore your iPhone in ITunes. Note that in this way, you will also lost all data on your device if you do not have backed up your iPhone before.

restore iphone in recovery mode

Way 8: Fix iPhone Error 4013 during iOS 11.3 Update without Data Loss

Want to repair iPhone 11 Pro error 4013 without data loss? Now you will need the help of UltFone iOS System Repair, a professional iOS system repair tool that can solve all iPhone errors/iTunes errors related to corrupted operating system file.

Free Download For PC Secure Download Free Download For Mac Secure Download
  • Step 1 Download and install UltFone iOS System Repair on your computer. Connect your iOS device to that computer with the USB cable.
  • Step 2Run this program after installing and click "Start" on the main interface.

    repair operating system
  • Step 3 Click "Standard Repair" to download the iOS firmware to fix your operating system

    download firmware package
  • Step 4 And finally click “Start Standard Repair” to fix iTunes error 4013/4014.

    firmware package is downloaded to computer


That’s all about how to fix error 4013 on iPhone 13/12/11/X. If it is an iTunes glitch, you can fix the error through updating iTunes or using the iTunes repair tool; While if the problem is caused by iOS system, then iOS System Repair aims to fix the iPhone error 4013 thoroughly. If you have any other questions, please take free to leave a message at the comment area, and we will see what we can do for you.

Fix 150+ iOS System Issues without Data Loss
  • 1-click to enter/exit iOS recovery mode free
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  • Factory reset iPhone without passcode.
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