i am using iPhone 6 version 9.1
i used to backup to the iCloud automatically without any problem.
in the last moth the phone did not succed to do any morebackup
when i am starting to do backup the phones tarts to do so and after few minutes stops without any message.
why is this?
what can be done to solve the problem?
i have enough space at the iCloud more than 500G avaliable