Hello Greylala91,
recenly I brought the same Mi Box 3 and was trying to install the Jio TV app through Playstore but the same is not available there. I tried to sideload the app from es file explorer and was able to install in on the box and logged in to my Jio Account but the issue is that the app is working on in portrait mode and not getting rotated to landscape mode. could you please look into this and help me setup the app on my Mi Box