In this short tutorial will explain how to allow the installation of addons through unknown sources, also known as 3rd party addons. When you install the Kodi Krypton for the first time you must enable the permission of Unofficial Addons. Only for Kodi Krypton or above.
Follow these steps carefully.
1 – Select System.
2 – Select System.
3 – Select Add-ons >> Unknown sources.
4 – And to complete the activation, select Yes. Remember that by allowing unofficial addons, you may be subject to loss of data or any other kind of problem on your device.