HOW TO FIND YOUR THEME LICENSE CERTIFICATE AND CODE AT THEMEFOREST
Following is an image of what one would see when they go to the Download portion of their Themeforest account. Once the license certificate has downloaded to your computer, please open it up and a few lines into it you will see your “Item Purchase Code”.
Download the latest Revolution Slider version 6.6.20
- Unzip locally on your machine and only update by ftp upload!.
- Do NOT Delete the revslider plugin using the wordpress admin area delete plugin abilities.
Just update and override the files by ftp upload.