How to Fix "Some Files Were Unavailable During the Last Backup"

7 effective solutions to help you fix "Some files were unavailable during the last backup" error.

To create a backup of an iPhone data, iCloud backup is the first preference for many users. It is the easiest way to protect data from various data loss situation. On iCloud, users can save a wide range of data such as images, videos, documents, contacts and many more. However, some iPhone users have reported that during an iCloud backup, they received an error of "some files that were unavailable during the last backup". Users are unable to perform an iCloud backup. That’s why we come up with this article with several solutions to fix this annoying error during the iCloud backup.

Let’s move on towards the solutions to fix the issue that you are facing and we have mentioned the most effective solutions. Moreover, no matter on which iPhone model you are facing this error the solutions will work for all the iPhone models including the latest one.

Solution 1 Check Wi-Fi Connection

You will be familiar with the fact that iCloud backup process requires a stable internet connection. If your Wi-Fi connection is poor, then it is also the reason why you are encountered with this error during the backup process. It might be also casing that your iPhone lost an internet connection during the backup. So, you have to make sure that from the beginning to end, your iPhone is connected with stable and good internet connection during the whole backup process. Moreover, you can also restart your Wi-Fi router for gaining the stable Internet speed. To check Wi-Fi connection on your iPhone, follow the below simple steps:

  1. Move to the “Settings” app.
  2. Open the “Wi-Fi” option and enable the Wi-Fi if it gets disabled. If you have poor or no internet connection, then it will display it as shown in the figure.
Fix Some Files Were Unavailable During the Last Backup via Wi-Fi Connection
Solution 1 - Check Wi-Fi Connection

Solution 2 Check iCloud Storage

When you get an error “some files were unavailable during the last backup”, another reason for this is also because of the insufficient iCloud storage. As iCloud backup also requires enough storage along with stable internet connection to carry out the backup process seamlessly. If your iCloud storage is out of space, then you need to manage or free up the space to resolve this error. To check iCloud storage, follow the below-mentioned steps on your iPhone:

1. Go to the “Settings” menu or app and then, click on the [Your Name]. Now, scroll down your iPhone screen to open the “iCloud” option.

Fix Some Files Were Unavailable During the Last Backup via iCloud Storage
Solution 2 - Open iCloud

2. After that, iCloud storage will be displayed on the iCloud page. If it is insufficient, then tap on the “Manage Storage” to free up space.

Check iCloud Storage
Solution 2 - Check iCloud Storage

Once able to get sufficient iCloud storage, then try again with iCloud backup. Hopefully, you don’t face an error again while the backup process.


Solution 3 Reconnect iCloud Account

Reconnecting an iCloud account can also fix the error as if the problem is with iCloud. The action of signing out and then signing in again can make for fixing the errors related to the iCloud backup. You will be able to perform an iCloud backup without facing any problem.

  1. Open the “Settings” app and then, click on the [Your ID].
  2. Scroll down the screen and tap on the “Sign Out” option. After a few minutes, again log-in to the iCloud Account.
Fix Some Files Were Unavailable During the Last Backup via iCloud Account
Solution 3 - Reconnect iCloud Account

Solution 4 Kill All Background APPs

One of the major reasons why you encounter with "some files were unavailable during the last backup" error is you have opened various apps in the background. It actually creates a hindrance during the backup process. The files that you are accessing via backup if it is already open in another app, then it becomes inaccessible. So, to fix the error if this is happening due to this reason, then you need to close or kill each and every app which is running in the background. To kill background running apps on iPhone or iPad is very simple.

  1. Double-tap on the “Home” button to open the app preview where all running apps are displayed.
  2. Now, swipe up all the apps to kill them.
Stop running all background apps
Solution 4 - Stop running all background apps

Note: If you have iPhone X, then swipe up from the bottom of your iPhone screen and press on the app preview until red icon appears on the top-left corner. Then, swipe up the app preview to kill it.


Solution 5 Restart Your iPhone

Restarting an iPhone is one of the effective solutions to fix many issues that your iPhone encounters. All the minor software issues get resolved by just restarting an iPhone. For every iPhone model, the restart process is somehow different. That’s why here we are providing restart process for every iPhone model. You can do according to your iPhone model.

On iPhone 6 and earlier models:

Press and hold down the Home and sleep/wake button together at the same time. Keep holding it until you don’t see the Apple logo on your iPhone screen.

Restart iPhone 6
Solution 5 - Restart iPhone 6

On iPhone 7/ 7 Plus:

Press and hold down the Sleep/Wake and volume down button together. Release both the buttons when you see the Apple logo on your iPhone display.

Restart iPhone 7
Solution 5 - Restart iPhone 7

On iPhone 8 or 8 Plus/ iPhone X:

First, you need to press and release the Volume up button quickly. Then, press and release the Volume down button quickly. Finally, hold down the side button until the Apple logo does not appear on your iPhone screen.

Restart iPhone 8
Solution 5 - Restart iPhone 8

Once the restart process is done, again do the iCloud backup process, and check if now error comes or not. Most probably, a restart will certainly fix the error.


Solution 6 Delete Last Backups

If all above-mentioned solutions are not able to resolve "some files were unavailable during the last backup error", then try to delete the current iCloud backup and then, again try to create it. This solution works for several iPhone users who have already gone through this error and you can give it try. Sometimes, on your iCloud storage, some files can be corrupted which cause you to encounter this annoying error during the process. You can easily delete the last iCloud backup from your iPhone without relying on any third-party tool.

  1. On your iPhone, open the “Settings” app and then, click on your Apple ID.
  2. Then, open the “iCloud” option and then, tap on the “Manage Storage”. Here, select the existing iPhone backup that you want to delete. Finally, tap on the “Delete Backup” button.
Delete last backups
Solution 6 - Delete last backups

Solution 7 Update Your iPhone

Another reason why you can face this error is a software update. If your iPhone got a next iOS version, but you have not updated your iPhone, then it can also be the reason. So, you need to install the latest software on your iPhone. To download the latest software, first, you need to check whether you got the next update or not. Moreover, by installing the next iOS version, even the minor bug issues on your iPhone get resolved.

  1. Move to the “Settings” app on your iDevice and then, open the “General” option.
  2. Then, tap on the “Software Update”. If next update is available, then download and install it on your iPhone.
Fix Some Files Were Unavailable During the Last Backup via iPhone update
Solution 7 - Update your iPhone

Conclusion

Hence, in this guide, to fix some files were unavailable during the last backup error, we have given every credible solution. So, we hope that with the help of the above-mentioned solutions, you might resolve the iCloud backup error on your iDevice. Along with the iCloud backup problem, if you are also looking for your Windows PC and laptops back up method, then AOMEI Backupper Professional is the ultimate tool that you can have. It is the most reliable backup software that supports all Windows operating system. It is made for professional as well as personal use. It offers many remarkable features which make this software highly preferable by many users worldwide.

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