Can’t backup. Get message - some files were unavailable during last backup

Hi

Go to iCloud make sure iCloud back up is on Then backup now over your wifi

Then go to settings down to reset Restore iPhone back to factory settings.

Set back up over your wifi when it asks if you want to use iCloud backup Say yes

You can use the latest backup or an older one.

Cheers

Brian 🇬-1F1E7;