Fixing 'The Last iCloud Backup Could Not be Completed' Error on iPhone

Backing up data is an extremely important and necessary task for any iPhone user to avoid data loss risks. In the process, if you encounter the The Last iCloud Backup Could Not be Completed issue, try one of these 10 methods below to resolve it.

Resolving 'The Last iCloud Backup Could Not be Completed' Error on iPhone

Fixing 'The Last iCloud Backup Could Not be Completed' Error on iPhone

Method 1: Update to the Latest iOS Version

By accessing Settings -->General -->

Method 2: Connect to Power and Wi-Fi

Automatic data backup on iPhone only occurs when your device is locked, connected to Wi-Fi, and charging. Ensure these conditions are met when backing up data to iCloud.

Method 3: Check the Status of iCloud Services

Sometimes, the issue is not with your device or your error but rather with Apple's services experiencing glitches. In this case, you can visit Apple's homepage and check if they are temporarily suspending services or encountering any errors.

Method 4: Sign Back into iCloud

Another way is to log out and then log back into iCloud immediately afterward.

To completely sign out your iCloud account from the device, open Settings -->Profile -->Sign Out.

Then, sign back in and try backing up your data again to see if the error persists.

Method 5: Check Available iCloud Storage

Keep in mind that by default, you only have 5GB of free iCloud storage. Insufficient available storage might prevent you from backing up your data. Follow these steps to check your available iCloud storage:

Open Settings -->Profile -->iCloud. You will see the amount of iCloud storage used against the total available memory.

If you don't have enough storage, you can delete some unnecessary files or purchase additional iCloud storage. Alternatively, you can switch to a new iCloud account to replace the full one.

Method 6: Optimize iCloud Storage

If you prefer not to purchase additional storage, you can optimize it by disabling the automatic backup of photos and videos to iCloud. Go to Settings -->Profile -->iCloud -->Photos, then select Disable iCloud Photos.

Method 7: Turn off Backup for Unnecessary Apps on iPhone

Step 1: Open the Settings app.

Step 2: Select Profile -->iCloud -->iCloud Storage.

Step 3: Choose Manage Storage -- >Current iPhone Backup.

Step 4: Turn off backup for unnecessary apps, then retry the backup process.

Method 8: Check available ROM storage on iPhone

Full memory on the iPhone can also cause errors, including the inability to back up data to iCloud. Therefore, make sure your iPhone has at least 1GB of free space, and if necessary, delete or use the Offload Unused Apps feature to optimize memory on your device.

You can check and utilize this feature by following these steps: Settings -->General -->iPhone Storage -->Offload unused apps .

Method 9: Reset Network Settings - Network Settings Reset

By doing so, your iPhone will automatically reset all network connection settings to default, including Wi-Fi connections, thereby stabilizing network connections and enabling successful iCloud backup.

Steps to perform: Settings -->General -->Reset -->Reset Network Settings

Method 10: Force Restart iPhone - Force Restart iPhone

If the above methods still don't assist you in performing the backup process, try restarting your entire iPhone. Different versions have different ways to restart:

For iPhone 8 and later: press and release the Volume Up button, then press and hold the Side button until the screen turns off and the Apple logo reappears.

For iPhone 7/7 Plus: Press and hold the Power button and the Volume Down button until the screen turns white, then continue holding both buttons until the Apple logo appears.

For iPhone 6/6s and earlier: Press and hold the Power button and the Home button until the screen turns white and the Apple logo appears.

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Here are some ways to fix the commonly encountered 'The Last iCloud Backup Could Not be Completed' error on iPhone. Hopefully, readers have been able to successfully back up their data. If you have any contributions or questions about backing up iCloud data on iPhone, please leave your comments below the article.