
Once you finished the backup, all you might want to do is:

Settings -> System -> Advanced -> Backup.To get back all your documents soon after the reset, you can actually save your documents to your Google Account. You really should backup your principal files like your images, contacts, chat, videos, … in your computer or on the cloud like Google Drive, DropBox, … before you begin the hard reset procedure of your LG V20. This process is going to clear off all the data of your LG V20 and you can expect to obtain a smartphone as it is when it is made. The factory settings reset or hard reset is definitely a more radical option.

How to Hard Reset your LG V20 (Factory Settings)
