https://themezee.com/docs/upgrade-to-pro-version/
Upgrade to Pro Version – ThemeZee
Sep 19, 2017 - This tutorial will briefly explain how you can upgrade from the free theme version to your purchased pro version. The process is very easy and will only take a...
upgrade to proversionthemezee
https://www.4kdownload.com/license/upgrade/1
Upgrade to Pro | 4K Download
Switch your Lite or Personal license for any 4K Download application to Pro. Activate all premium features, use them forever.
upgrade to pro4k download