I have a Lumia 1020 with Windows Phone 8.1 Update 1 in it. Since some months now, I cannot backup with my Microsoft account, because the backup fails at 96% with the usual generic message. Before that period, backups worked fine. Other weird things: I have told my phone to "regurarly save location", but the last location tracked (as I see on the web from account.live.com) is from 15/12/2015, months ago!! Also, I have tried many, many solutions suggested on the net:
1) Delete backup from my phone and double-check that it is deleted on https://onedrive.live.com/Options/DeviceBackups, soft reset and then retry.
2) Uninstall all of my apps from the store, soft reset and then, retry backup.
3) Change wallpaper, disable SMS, photos and apps backup and then retry.
Nothing worked. Another peculiar thing is that (my current and initial phone language is Greek) I changed region and phone language (in about December) to English USA to try Cortana, I tried and then, I re-changed all those settings (both region and language) to Greek and ever since the backup always fails!
If you request it, I can also provide Field Medic data. Finally, let me tell you that hard reset (as a Microsoft Tech suggested to me) is definitely not an option for me.
Please help me restore my backup functionality!