where can I get the firmware
Jimilab JC900
ARM Cortex A7 Quad-Core 1.3GHz
MT6582, Built-in GPU Mali-400, CVBS System
EMMCs 8G Flash
RAM 1GB DDR3L
5 Inch Multi-Touch Screen
QHD 960 * 540
Auto-Adjusting Brightness: 280-340 cd / ㎡
http://www.jimilab.com/products/android-3g-car-mirror-monitor.html