This is patched version, fully unlocked prime function. No prime key is required. 

If you want to use TeslaUnread plugin,you must install TeslaUnread plugin in my 

package, please don't install the plugin from Google Play. 

If your ROM came with Nova Launcher you'll have to remove it before installing this. 

Upgrade from previous version : 

make a backup from within the Nova's settings 

install new version, 

first option screen is to restore from previous version.