I cannot backup my Lumia 430

[Windows Central Question]

There's always an error saying "We can't connect to OneDrive to back up. Update your phone and try again."

Actually, my phone is up to date.

I did follow the solution from windowscentral.com by deleting the old backup. But after that, I still cannot back up the phone & now I don't have backup in OneDrive anymore.

Please help.
Thanks in advance.

-John-