Many users have been experiencing the “This iPhone could not be restored. An unknown error occurred (14)” error or the “This iPhone could not be updated. An unknown error occurred (14)” error while trying to update their iPhones through iTunes. In this article, we will inform you about some of the methods that you can adapt to counter this problem and also study the reasons due to which this error is triggered.
What Causes the “Error 14” while Updating iPhone?
After receiving numerous reports from multiple users, we decided to investigate the issue and devised a set of solutions to fix it completely. Also, we looked into the reasons due to which it is triggered and listed them as follows. Now that you have a basic understanding of the nature of the problem, we will move on towards the solutions. Make sure to implement these in the specific order in which they are presented.
Solution 1: Checking USB Cable
The most common cause for this error is the misconfiguration between the mobile and the USB cable. Therefore, it is recommended that you use the USB cable that came with the mobile. If that isn’t available, you can use a cable that has been certified by Apple to work with iPhones. Also, try a different USB port on the computer and make sure you aren’t using a USB cable extension.
Solution 2: Freeing Up Space
It is recommended that you try and free up space on the iPhone before trying to update it and verify that at least 5GB of space is available on the device.
Solution 3: Checking Internet Connection
Before trying to update, make sure that you are connected to an internet connection that isn’t unstable. Sometimes, the internet might be facing packet loss or disconnection issues. Therefore, it is recommended that you check for any issues with the internet and also make sure that there isn’t any significant packet loss while downloading the firmware.
Solution 4: Updating Firmware
This process is important and must be done every once in a while to ensure that you have the latest version of the iTunes software. The steps to check for updates for iTunes differ depending upon the operating system that you are using.
For Windows
For macOS
Solution 5: Removing Firmware Files
If the firmware files are corrupted or damaged, the updating process will not be completed and this error will be triggered. Therefore, it is recommended to remove the “IPSW” files from the root folders. In order to do that you will first have to identify the folder where it is located. This location differs depending upon the operating system that you are using. Below, we have listed the locations for this file on different operating systems. After navigating to the specified location for your device, delete the IPSW file. Once the file is deleted, the iTunes software will be prompted to download the firmware again.
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