I have an iPhone 6 up to date running iOS 9.2.1, and iCloud Backup has been working automatically - backing up my device every night. Just about 2 weeks ago I decide delete old backups of iOS devices from System Preferences using my MacBook... After that this feature stop working. If I disable the iCloud Backup on this view, I can't enable again. I need to connect my iPhone to iTunes, and from there enable again. Because if I tried to enable again from iOS doesn't work and display this popup: I restart the device, reset my system preferences and nothing. Is broken. Anyone experienced this?