Here http://pan.baidu.com/share/home?uk=389436537#category/type=0 the new firmware version V919 AIR CH 双系统android固件(V7版本)-20160429, Android 5.1 yet. Revolutionary in it nothing, but there are pre gappsy. More at the same time adjust the screen brightness tweaked. Binary file “su” (as in the previous version) present in the system, but the question is about activating root-access remains open (in the previous version, I integrated su/SuperSU directly in the image, in this case, did the same).
After installing Android will have to reinstall Windows!