1 If you turn on the iCloud service on the iPhone, it will automatically upload the data on the phone when you are charging the phone and the phone is connected to the wireless network. So when iCloud runs out of storage space, you will see a reminder displayed in English when charging. Click the "Close" button to close the reminder and ignore it. Click "Settings" to directly open the iCloud setting interface.

2 Find the "Settings" icon on the phone's main screen, and then click Open.

3 In the settings list, find the "iCloud" option and click Enter.

4 Then, at the bottom of the iCloud setting interface, find the "storage and backup" option and click Enter.

5 Next, in the storage and backup settings, you can see the total storage space and current available capacity of your iCloud account. Click the Manage Storage Space option.

6 Then you can see how many devices are using the same iCloud account. Here, you can see that I have two devices using the same iCloud account. The application data backup under the manuscript and data in the figure refers to the data storage shared by two devices. You can see that my iPhone occupies the largest part of storage space in iCloud. Click here on iPhone to enter the management of storage space.

7 Next, you can see the detailed backup data of iPhone on iCloud, and you can see that my camera film currently occupies a large part of storage space. Click the switch to the right of the photo film to turn off the photo backup and delete it.

Note: Turning off and deleting the camera film in iCloud will not affect the photos on your phone.

Then the system will prompt us whether to close "Close and Delete", just click.

9 In addition, if you don't want iCloud to back up all your data at all, you can also find the "Delete Backup" option at the bottom. Click it to delete the backup of the entire device on iCloud.

10 When we delete some unnecessary data backups and return to "storage and backup", we will find that "available capacity" has increased.