CAUTION: If you have made any changes to theme files, updating the theme will overwrite your modified files and you will loose any customizations. For safe updates please enable the Child theme and do any customizations there.
Pay attention that if you change the child theme to parent and vice versa the customizer settings may differ by the theme, so if you have the main theme active and after update you activate the child theme, your customizer settings could be lost.
Install this plugin : wordpress.org/plugins/customizer-export-import
And you will be able to save the customizer settings and save them for backup or later use, also if the initial settings are in the main theme, activate it, save them, then activate child and import them.
Automatic theme updates:
Please read this complete article on how to enable automatic updates for KLEO.
Manually update theme by FTP.
– Connect to your server.
– Go to wp-content/themes/ and copy “kleo” folder to your computer so you have a backup of your old files.
– Extract kleo.zip that you have downloaded from Themeforest. Make sure the resulting “kleo” folder has a style.css in it. Delete on your server all files inside wp-content/themes/kleo and then copy all files inside “kleo” folder to your server in wp-content/themes/kleo
Last step is to go in WP Admin – Theme options and save the options since some dynamic elements might have been added and to make sure you get the latest styling.