I had the same problen. now i am use the global rom for the redmi note 2 prime
http://en.miui.com/download-274.html#430
I use the 7.1.1.0, today are a new rom 7.1.2.0, i dont know if the bt wok, in global 7.1.1.0 YES. the problen os this rom, is the lenguage, The number of languages is low. i...