iPhone’s are one of the most popular mobile devices that are manufactured and distributed by Apple. They are famous for the premium build quality, great security features and increased software support. In fact, the latest software is pushed out to iPhones that are 3 or even 4 generations old. This continued support, however, comes with a drawback.
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.
- USB Cable: It is strongly recommended that you while connecting your phone to the computer, you use a cable that has been certified to work with iPhone devices. It is also recommended to use the cable that came within the device’s box. Apple tries their hardest to make sure that all the accessories used by iPhone users are the ones that have been manufactured and distributed by themselves. Therefore, the compatibility of the mobiles is made limited to Apple-made products only.
- Corrupt Firmware: In some cases, the firmware downloaded by the software to update the mobile might be corrupted. Firmware can get corrupted if certain files are deleted or misplaced. It is required that all files are in place and available while trying to update the iPhone.
- Low Storage Space: All upgrades come bundled with new features and files. This means that increased storage space is required to store these files and if this space isn’t available on the iPhone, this error is triggered.
- Outdated iTunes Software: In some cases, iTunes might not be able to download the correct firmware and install it on your mobile due to being outdated. It is required that the user updates their software regularly.
- Unstable Internet: It is possible that the internet connection that you are using to download the firmware isn’t stable and is facing disconnectivity issues. If that is the case, the software will not be downloaded properly and the error might be triggered.
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.
- Open iTunes.
- In the menu bar on the top of the iTunes Window, click on the “iTunes” option.
- Select the “Check for Updates” option.
- Follow the onscreen prompt to update to the latest version.
- Open the Apple Menu and click on “System Preferences“.
- Select the “Check for Updates” option.
- Follow the prompts to install the update for macOS.
- When macOS has been updated, iTunes will also be updated.
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.
- macOS: iPhone~/Library/iTunes/iPhone Software Updates or iPad~/Library/iTunes/iPad Software Updates or iPod touch~/Library/iTunes/iPod Software Updates
- Windows XP: C:\Documents and Settings\\Application Data\Apple Computer\iTunes\iPhone Software Updates
- Windows Vista,7 and 8: C:\Users\\AppData\Roaming\Apple Computer\iTunes\iPhone Software Updates
- Windows 10: C:\Users\USERNAME\AppData\Roaming\Apple Computer\iTunes\
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.