Source Link : https://mykodiaddons.com/install-star-tec-kodi-addon/
Launch Kodi
Press SYSTEM then File Manager
Press Add Source
Press None
Type http://gen-tec.co/gentecwiz/ and Press Done
Enter a name for media Source, type Gentec & Press OK
Go back to Home Screen
Press SYSTEM
Press Add-Ons
Press Install from zip file
Press Gentec
Press repository.GenTec-x.x.x.zip
Wait for Add-on enabled notification
Press Install from Repository
Select GenTec Repository
Press Video add-ons
Press Star Tec
Press Install
Wait until you see Star Tec Add-on installed message
Star Tec is now installed and ready to use.