How does iPhone6 back up SMS?

Hello, I'm glad to answer your question.

(1) Backup operation method: Now we open itunes in the computer, and then connect the iphone to the computer with the data cable. Then we right-click the left device (the new version of iTunes doesn't display the left sidebar by default, so you need to press the keyboard shortcuts Ctrl and S to open it) and select "Backup":

(2) Restore operation method: We also right-click in itunes, and we select "Restore from backup ..."

(3) manage backup mode: click the menu bar above iTunes and click Edit >; Preferences > devices ",you can view the management backup files.

I hope I can help you consult online customer service for details.