K818
CID52
R6BC002
http://www.shenliang.org/cn/download/Flash_Files/DB2020/K818/CID52/R6BC002/China/K818_CXC1250953_CHINA_ZI_R6BC002_RED52_sw_enc.rar
http://www.shenliang.org/cn/download/Flash_Files/DB2020/K818/CID52/R6BC002/China/K818_CXC1250949_CHINA_R6BC002_RED52_fs_enc.rar