Download latest Android KitKat stock firmware for CS918 / MK888B / K-R4 TV Boxes from here or from here. Download Android Jelly Bean 4.2.2 stock firmware for CS918 / MK888B / K-R4 TV Boxes from here.
Firmware： cyxtech_rk31_cs918_8723_141107_4.4_8g2g
Image file name: cyxtech_rk31_cs918_8723_141107_4.4_8g2g.img
Model： CS918 / MK888B / K-R4 TV Boxes Realtek 8723 WiFi chip version
Archive size: 334 MB
Platform: Rockchip RK3188
Boot version: 2.16
FW Version: 4.4.02
