HI guys:
Here is the newest stock firmware for CX-919,it should work with Tronsmart CX-919.
It has added new patches from rockchip, improve the video play, and other functions.
How to flash? click this link:
If you have problem when install the drivers, check here
https://blog.geekbuying.com/index.php/2013/11/08/have-problem-in-install-the-rockchip-drivers-no-worry-rockchip-release-the-drivers-auto-installation-tool-download-here/
Enjoy!
Eric
Geekbuying Team