in spanish sorry...
http://www.htcmania.com/showthread.php?t=1120750
fix the RN2 bt bad working. change the baseband, actualy RN2 has p51, in this tutorial, the las baseband works, is the p37. is a zip, you must to instal fron the twrp.
my bt, work better, but not perfect. some times i need to...