How to fix an Apple iPhone 6s Plus iTunes Not Backing Up On Computer

Creating a backup of your device is highly recommended before making any changes to your iPhone settings, particularly with iOS configuration like system resets and restore. All these are for safekeeping purposes. Aside from iCloud, iPhone users also have the option to backup to iTunes on a computer. Backing up your iPhone to iTunes is a way of saving your iPhone data on your computer and at home.

While many iPhone users are able to backup to iTunes with no hassles, others don’t end up having the same success. This is the main issue that we are trying to address in this post. So if ever you need help backing up your iPhone 6s to iTunes like when your iTunes backup couldn’t be completed or you couldn’t restore from an iTunes backup, this content might be able to help you.


Possible reasons as to why your iPhone 6s Plus won’t backup to iTunes

With a computer, iTunes app, and a cable to connect your iPhone and your computer, you should be all set to backup your iPhone to iTunes. But what was supposed to be an easy process ends up to become troublesome because of some factors. The culprits could be on the computer you are using, within iTunes, or your iPhone itself. In most cases, the underlying cause is software-related. But there are also some other instances when the iPhone won’t backup to your computer using iTunes due to some faulty hardware like damaged cable, or defective USB port on the computer is being used. In this case, switching to a different USB port or using an alternative functional working cable resolves the problem.

But solutions can vary in software-related cases. You will need to try to isolate the problem and determine the underlying cause in order to fix it.

Highlighted below are helpful workarounds and troubleshooting methods you can used to find out why your iPhone 6s Plus won’t backup to iTunes along with potential solutions for you to try on.

First things to do

  • Check the cable and make sure it is working and not damaged. As Apple recommends, use only the Apple-supplied or original USB cable for your iPhone. This means that you have to connect your iPhone to the computer using the lightning cable from Apple or MFi certified cable. MFi certified cables are those lightning cables that are created with Apple’s technology.
  • Verify and ensure that the USB port is working or functional. It is possible that some of your computer’s USB port is defective or malfunctioning and so the computer won’t be able to establish communication with your iPhone. To rule out the possibility of a defective USB port being used, try to use a different USB port and then see if it makes a difference.
  • Check the OS version on the computer and iTunes software. As much as possible, use a computer that runs on a later version of operating system to make sure it meets the minimum system requirements for iTunes or your iOS device. Using the latest version of iTunes software is also recommended.

Once have all that checked and still your iPhone 6s Plus won’t backup to iTunes on your computer, you may try any of the following options.

How to fix an Apple iPhone 6s Plus iTunes Not Backing Up On Computer

Below are generic solutions you can try to fix your iPhone that won’t backup to iTunes. Be sure to test your device after completing each method to determine whether the problem is already fixed. If not, continue to the next applicable method.

First Solution: Reboot your computer and your iPhone 6s Plus (soft reset)

Should the problem is triggered by some glitches on the software either on your computer or your iPhone system, performing a reboot or soft reset can likely rectify them. For as long as you’re certain that your computer and cable in use are fully functional, everything should work as intended unless a software problem is transpiring.

Just like when other computer programs suddenly misbehave or become unresponsive, a reboot on the computer is most likely what’s needed for them to work normally again. Just power off your computer for a few seconds and then turn it back on like you normally do. In the case where the computer is freezing or not responding, you can just do a long press on the power button until the computer powers off. Otherwise, unplug the power cord from the power source. Keep it turned off for a few seconds then power it back on.

Also be sure to unplug your iPhone from the USB port before you reboot the computer.

After rebooting your computer, restart your iPhone (soft reset).

  1. To do, press and hold the Power (Sleep/Wake) button for a few seconds until you see the Slide to Power Off screen. Drag the slider left to right to power off your device completely. After 30 seconds, press and hold the Power button again until the Apple logo appears. Your iPhone will then reboot.

After the restart, connect your iPhone to the computer again then try to backup to iTunes and see it goes through now.

How to backup your iPhone 6s Plus to iTunes on your computer

To make sure that you are doing it the right way, you may refer to the following steps and retry backing up your iPhone to iTunes:

  1. Connect your iPhone to your computer with the supplied USB cable.
  2. Open iTunes on the computer and wait for it to recognize your iPhone.
  3. If prompted, enter your device passcode or tap the option to Trust This Computer.
  4. Select your iPhone 6s Plus from the list of available devices in iTunes.
  5. Select the box to Encrypt [device] backup, if you want to save Health and Activity data from your iPhone or Apple Watch. You need to create a password for the encrypted contents. Otherwise, you can proceed creating a backup that is not encrypted by clicking the Back Up Now button.
  6. Wait until iTunes is finished backing up your iPhone.
  7. Once it’s done, you will see a message telling that the backup has finished successfully on the Summary section in iTunes. Just look under Latest Backup to find the date and time when the most recent iOS backup was created.

If you still couldn’t backup your iPhone 6s Plus to iTunes, give it another try using the subsequent steps:

  1. Reboot your computer and your iPhone 6s Plus.
  2. Connect your iPhone to the computer with the right USB cable.
  3. Wait until iTunes recognizes your iPhone.
  4. Select your iPhone 6s Plus in iTunes. It will show up in the list of devices when it’s recognized.
  5. If you are using Windows computer and iTunes won’t respond or your backup never finishes, try to disable or uninstall security software on your computer. It is possible that an antivirus software or firewall is denying full access to your iPhone. Or if you have another computer, try to switch and use the other computer instead. Just make sure that you are using the latest version of iTunes on your computer.

If you are seeing any error prompts or codes like an error has occurred, your backup is corrupt or incompatible, or there is no enough space to create backups, take note of the error message as it gives you some hints on what to do next.

Other Recommendations

  • Make sure that your computer has enough space. iOS backups can take up a lot of space on your computer given the fact that your iPhone can hold a lot of information. One of the possible reasons as to why you couldn’t backup your iPhone to iTunes on your computer is because your computer has insufficient storage. If you see an error that says there is not enough disk space, it means that your computer doesn’t have any more room for the backup file. You can move some unwanted files from your computer or uninstall unnecessary programs to free up some space.
  • Update your iPhone software. Your iPhone software may already be out of date and needs an update. Check for available updates for your iPhone by heading to Settings-> General-> Software Update-> then follow the onscreen instructions to download and install the latest iOS version for your iPhone.
  • Backup your iPhone 6s Plus to iCloud. If you still couldn’t backup your iPhone 6s Plus to iTunes, then you may opt to create an iCloud backup of your iPhone instead. You need to connect your device to a Wi-Fi network to continue the backup process using iCloud Backup. You can also backup from your Settings menu. To do so, go to Settings-> [your name] -> iCloud-> iCloud Backup. Follow the onscreen prompts to proceed and complete the entire process.

If none of these is able to help and your iPhone 6s Plus still won’t backup to iTunes on your computer, contact your carrier or Apple Support for further assistance and other options.