need Tengda g3 (fake Lenovo A808 plus) firmware


Please, help.
Model:Tengda G3
Phone Style: Bar, multi-touch screen, 5.0 inch Capacitive touchscreen
Operating System: Android 4.2.2 OS
Processor: MTK6572 Dual Core 1.3GHz
Display reulotion: 854*480 pixel
Built-in Memory: 512MB RAM, 4GB ROM(support extended 16gb sd card)