I am using Redmi 2 prime. Still the Android version in my mobile is Lollipop only. Please update to marshmallow or nagout. Some custom ROM available in Android nougat for Redmi 2 and Redmi 2 prime. Why Xiaomi not working to upgrade to Android nougat.
In order to fulfill the basic functions of our service, the user hereby agrees to allow Xiaomi to collect, process and use personal information which shall include but not be limited to written threads, pictures, comments, replies in the Mi Community, and relevant data types listed in Xiaomi's Private Policy. By selecting "Agree", you agree to Xiaomi's Private Policy and Content Policy .