How to Update Your WordPress Theme
The most common way to update your theme is to download it from themeforest.net and re-install. Basically:
1. Switch your theme to one of the default themes of WP.
2. Remove the theme. Your data & settings will not be deleted but it’s always suggested to do a back-up.
IMPORTANT NOTE: If you’ve done any changes in theme files (edited the codes manually), those changes will be lost when you removed the theme. Therefore, it’s always recommended to use a child theme.
3. Download the new version of your theme and install it like you’re doing it for the first time.
4. Activate your theme and you’re done.