Need firmware for DNS AirPad E77 topic

Hello, im new here and wona say hello to everybody.. :)

I have problem whit my Russian edition Tablet 7" DNS AirTab E77 with ROCKCHIP insade 3066.

Need firmware for him, they just stock on logo DNS and freez.

Find more: EM3066-718A (7.780.1055 ver:.0.4)

I need that soon as possible....

And i find a program whit flash " RKBatchTool1.5en"

Thanks all for help