shuvro, you are all over the place with your questions. I have no idea why you are getting only 16 channels, other than you might be looking at a 'group', so on the left side of screen when you are looking at "Live TV', make sure that "Group" is set for "All channels". I think I saw you already updated to 15.0, but the basics on updating is to go to Kodi.tv/download to get the latest stable version of Kodi for your machine, and install that. If you found the downloaded Kodi here, it's only for special situations where the PVR has to be included due to installation issues on Android... and no other platform.