When I try to backup into icloud it says latest backup incomplete. What now?e

This may be caused by a corrupt existing backup that needs to be deleted, or by data on your phone that is preventing the backup from succeeding. To troubleshoot these, try deleting your last iCloud backup (if you have one) by turning off iCloud Backup in Settings>iCloud>Storage & Backup, then tap Manage Storage, swipe across your backup and tap Delete, then go back and turn iCloud Backup back on and try backing up again.

If it still won't back up, you may have an app that is preventing the backup from succeeding. To locate which one, go to Settings>iCloud>Storage & Backup>Manage Storage, tap the name of your device under Backups, under Backup Options tap Show All Apps, then turn them all to Off (including camera roll) and try backing up again. If it succeeds, then the camera roll and/or one of your apps is preventing the backup and you'll have to located by process of elimination. Turn the camera roll On and try backing up again. If it succeeds, turn some of your apps to On and try backing up again. If it succeeds again, turn some more apps to On then try again; repeat this process until it fails. Eventually you'll be able to locate the problem app and exclude it from your backup.

What do you suggest one should do if it does NOT succeed when you turn Off all apps and try backing up again?

First try deleting your existing backup if you haven't already done so. If you have, and turning off all apps and the camera roll still doesn't allow it to back up, you may have anetwork connectivity issues with the iCloud server. Solutions to that include power-cycling your wireless router (unplugging it for 15 seconds, then plugging it back in), resetting network settings on your phone (in Settings>General>Reset), updating the firmware on your router, and changing the router's DNS settings to use Google's public DNS (see https://developers.google.com/speed/public-dns/docs/using).

Unfortunately this menu is not available anymore in iOS 8.1... any help please? I have the same issue 😟

Here's an updated version for iOS 8:

This may be caused by a corrupt existing backup that needs to be deleted, or by data on your device that is causing the backup to fail. To troubleshoot these, try deleting your last iCloud backup (if you have one) by going to Settings>iCloud>Storage>Manage Storage, tap your device under Backups, then tap Delete Backup and choose Turn Off & Delete at the prompt. Then go to Settings>iCloud>Backup and turn iCloud Backup back on and try backing up again.

If it still won't back up, you may have an app or something in your camera roll that is causing the backup to fail. To locate which one, go to Settings>iCloud>Storage>Manage Storage, tap the name of your device under Backups, under Backup Options tap Show All Apps, then turn them all to Off (including camera roll) and try backing up again. If the backup is successful, then the camera roll and/or one of your apps is causing the backup to fail and you'll have to located by process of elimination. Turn the camera roll On and try backing up again. If it succeeds, turn some of your apps to On and try backing up again. If it succeeds again, turn some more apps to On then try again; repeat this process until it fails. Eventually you'll be able to locate the problem app and exclude it from your backup.

Tnxs, Great. Found the faulty App.

You're welcome.