Yup its still not working.... Any other ideaHave you tried turning off text message backup? Sometimes it will work if that option is selected.
If it reaches 98%+ ....
Then it's backed up successfully .. YES!! it happens all the time .. I tried yesterday day and it fails .. I hard reset anyways.... Then when I signed in with my Microsoft account it showed the backup 10 November .. So that what happened with me ..
Also try this
* delete old backups ..
* try changing the look screen image
Hope this helps