There can be a number of reasons why your phone will not backup to iCloud. One reason may be that your iCloudaccount is not set up correctly on your phone. Another reason may be that your phone is not connected to a Wi-Fi network.
To check if your iCloudaccount is set up correctly on your phone, open the Settings app and tap on iCloud. If your iCloudaccount is not set up, you will be prompted to enter your iCloudusername and …
