Here is the new stock firmware for MK808C Android TV BOX:
http://www.mediafire.com/download/u9p8q9ya6x4bqh7/MK808C_CN163906__140314.rar
password: geekbuying.com
MK808C is one of the dual core TV BOX which use allwinner A20 cpu, it support Bluetooth/AV/HDMI/OTG function.
shopping link for MK808C is:
Enjoy the firmware, any questions, feel free to ask!
Geekbuying Team!