FW OF ANDROID TV BOX KT-621

Please download batch tool from below link, 

http://www.mediafire.com/file/qfb5x041muxg7dt/TV_box_batch_tool_.zip

Please download the FW from below link, 

http://www.mediafire.com/file/sltngujjz1986tp/rk3229_5.1_MX4N_SSV6051p_ZhuoXinZhiNeng_ESSENCORE_KT618_20170314_V004.zip