Many users face the the trouble of iCloud Backup does not work right away as it is supposed to be. There should be some common errors:
“The last backup could not be completed.”
“iCloud Backup Failed.There was a problem enabling iCloud Backup.”
or: “Not Enough Storage. This iPhone cannot be backed up because there is not enough iCloud storage available.”
Whatever the errors are, read the following troubleshoot to get this of troubles.
- Reset Network Settings: Settings > General > Reset > Reset Network Settings
- Delete all unnecessary backups existing not really needed: Settings > iCloud > Storage > Manage Storage. (This works magically on many users)
- Upgrade to latest iOS version if available.
Hold the Home + Wake buttons together till the device reboots and the apple logo appears, then attempt to backup with iCloud.
Hope fully this could help.