By Kelsey / Last Updated September 7, 2020


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User case: the last backup could not be completed

“Yesterday I took an iCloud backup on my iPhone. In the beginning, it appeared to be working properly. It showed the status of ‘Backing Up…’ and displayed the usual ‘Estimating Time Remaining’ message. But after a while, the backup task stopped and the following error message was displayed: ‘the last backup could not be completed’. What now? ”

The Last Backup Could Not Be Completed

Some users have reported that they receive an error prompt when trying to back up their iOS device to iCloud, causing iCloud backup incomplete. It is a good idea to use iCloud for iOS device backup. iCloud can ensure data security when a device fails or is lost. So this problem must be fixed so that no data loss occurs in the future.

How to fix iCloud backup incomplete issue?

I will introduce some effective measures that you can take. If you also have iCloud backup incomplete restore, read on and understand the steps.

For some typical operations such as restarting your device, checking whether your device has enough iCloud storage space, or ensuring iCloud backup is enabled, I will not go into detailed steps. I think you can try some typical operations before you operate the following methods. If your problem is still not solved, try the following methods.

Method 1. Delete old backup and reset network settings.

Step 1. Connect the iPhone/iPad to a computer and back up to the computer locally via iTunes.

Step 2. After the backup is complete, go back to the iOS device, navigate to Settings > iCloud > Storage > Manage Storage.

Step 3. Locate and delete the old iCloud backup.

Step 4. Clear out network settings in iOS Settings > Reset > Reset Network Settings (Wi-Fi networks are removed, you need to rejoin them).

Reset Network Settings

Step 5. Rejoin the Wi-Fi network (make sure the Wi-Fi network is working properly and have enough bandwidth to upload).

Step 6. Return to Settings > iCloud > Backup, and choose “Back Up Now”.

Method 2. Re-add your iCloud account.

If the problem is caused by an error in iCloud, then this method can be effectively solved.

Step 1. Navigate to Settings > Apple ID, and tap on Sign Out at the bottom.

Icloud Sign Out

Step 2. Wait a few minutes, go to iCloud, enter your account password and log in again.

Method 3. Delete damaged existing backup.

The incomplete iCloud back may be caused by the existing damaged backup that needs to be deleted, or it may be because the data on the device prevents the backup from succeeding.

Step 1. Try deleting your last iCloud backup (if you have one) by turning off iCloud Backup in Settings>iCloud>Storage & Backup.

Step 2. Tap Manage Storage, swipe across and find the backup, tap Delete.

Step 3. Then go back and turn iCloud Backup back on and try backing up again.

Step 4. If it still does not back up, you need to find a problematic application. Go to Settings>iCloud>Storage & Backup>Manage Storage, choose the name of your device, and tap Show All Apps, then turn them all to Off (including camera roll) and try backing up again.

Step 5. If the backup task starts, it proves that an application is blocking the backup. Open the applications one by one, and then try to back up. Repeat this process until the backup fails. Then you will be able to find the problem application and exclude it from the backup.

Method 4. Update the device to the latest version.

Make sure that your iPhone or iPad is up to date.

Step 1. You can check this by going to Settings > General > Software Update.

Ios Software Update

Step 2. Tap Download and Install.

Method 5. Contact with Apple support team.

If your problem is still not resolved and you need help, please contact Apple Support.

When you are in doubt, it is not a bad idea to seek help from Apple's technical support department, because they will someday come up with some ways that no one else can think of.

  • You can make a call, you must dial the toll-free number 800 915 904. The assistance period is from 8:00 to 19:45.

  • You can also choose online support:

Step 1. Go to Apple’s web site:

Step 2. Click Support at the top of the page and select Contact Support.

Contact Support

Step 3. Click Talk to us. Then select the product with the problem and select the specific problem such as iCloud backup failed. Then select the product that has the problem, and select the specific problem such as iCloud backup failed for consultation.

Talk To Us

How to recover incomplete iCloud backup?

Don’t know how to restore incomplete iCloud backup? You can find detailed instructions here.

You need to make sure that you are always connected to Wi-Fi because you can't backup and restore through a mobile Internet connection. The time required to restore from a backup depends on the size of the backup and the speed of the Wi-Fi network.

Step 1. Navigate to and log in to your account.

Step 2. Select Settings.

Step 3. Scroll down to the bottom of the Settings page and click Restore Files.

Step 4. Find the file you wish to restore, and place a checkmark beside the file (repeat for as many files as you wish to recover).

Step 5. Click Restore File(s).

One more thing: what do I do when my iCloud is full?

5GB of iCloud free storage space is very limited for iOS users. When you need more space, it is best to be free, but also to ensure data security, is there any way?

I suggest that you can have multiple cloud drive accounts, whether it is multiple accounts of the same cloud drive, or accounts that occupy multiple different clouds. The cloud driver will be provided with free cloud storage space when registering. When storage space is insufficient, using other cloud storage services to back up other data is undoubtedly a very good choice.

Multiple Cloud Storage

But you may worry about the following problem: these cloud storage accounts or the amount of data they contain will become larger and larger, what should I do? I strongly recommend that you use the free cloud backup and management service CBackupper.

Cbackupper Main Page

It has a very useful feature, combined with cloud storage, can make full use of the free space in the cloud disk for backup. During the backup process, when the free space of one cloud disk is insufficient, it will be automatically backed up to the second cloud disk, and so on.

And CBackupper does not limit the number of added accounts, so you can perform backups without restrictions. If you are interested, you can click and learn the detailed steps for using CBackupper to manage multiple cloud storage accounts.

Final Words

The above provides you with several effective ways to solve iCloud backup incomplete. I hope you can find one that is helpful to you. If you find that your iCloud storage is insufficient and are looking for a way to get more backup space for your device, why not try CBackupper? Combined cloud storage may be the best for you. Try it now!