Star ulefone n920e is really nice HTC butterfly copy. It has 720p HD screen, 8.0 Mega Pixels auto focus back camera,good original silicone case.It used to be with MTK6589 quad core CPU, but now it is with MTK6582 CPU. And the android OS upgrades from 4.2.1 to 4.2.2
Here is official ROM only for N920e mtk6582: http://pan.baidu.com/s/1sj58ojV.
If you need to flash this ROM,Please press volume down key and power key at the same ime, don’t loose volume down key until you enter the factory mode.Check the “version”, you will find what is the main sensor(camera),sub camera and LCD(lcm) of your phone
then use this flash tool http://pan.baidu.com/s/1c0w10Us to flash this ROM