I have tried and tried to do a backup to the cloud and my phone never completes the backup. I have 25GB cloud storage which is more than plenty. My phone is a 16GB 4s. I can start the back up before i go to bed and it still never completes
iPhone 4S, iOS 6.1.3
If you get the error "Backup not successful" and you've tried deleting the last backup and trying to back up manually without luck, try the following test: Go to...
Settings>iCloud>Storage & Backup>manage Storage, tap your device name in the Backups section, then look under Backup options. Turn off all apps from backup and then do a manual backup. If that doesn't work, then this post will not help. If the backup works, then go back to the app list and turn some on and try another backup. If successful, keep repeating these steps. If it fails at some point, then try to zero in on the one app that seems to make the backup fail. (I had this problem and found one app failing, probably due to a corrupt data file.)
This process will take time, but if a backup works with no app data being used but clearly fails with the original settings, then somewhere in the mix of apps is a "bad" one.
my phone will not complete a back up to the cloud
