Just wanna give a double thumbs up to TS. Even before buying the 9021 TS is honest and resourceful. Not only that he was fast and responsive. Received the item after a day or two payment was done. ^^ Very happy with his service.

Btw I also have Good News to Redmi Note 3G WCDMA version that all button works now on Android 4.4(Beta Rom Tho).

And also you can basically use this controller and your phone to be something similar as Nvidia Shield which basicly allows you to stream all your favorite PC Games on Your PC to your phone and controller.

You need an Nvidia Graphic Card and LimeLight and a decent internet speed.
Using XHome and tested a few games with it all button works flawlessly.
Game Tested that is 100% working : Crysis 3, Far Cry 4, L4D2.


Now I can lye on my sofa(or anywhere at home) and play my favourite games with this. ^^
*Take Note that you really should have a decent internet speed or it will really lags and spoilt the experience*