Here is how you can update your HTPC Box OpenElec Kodi 16.1 to Latest OpenElec 8.0 Kodi 17.1 in very few steps.
You Need to download this file for update
How to enable 3rd party add-ons
https://youtu.be/9Mv0LY-vExY
How to install Indigo from TV add-ons
https://youtu.be/9nIfvNp5_Tc ( No more )