HOW CHANGE DEFULT NANOPI S2 OS

HI 
I HAVE NANOPI S2 THAT IT BOOT DEBIAN FROM EMMC 

HOW CAN I INSTALL ANDROID ON EMMC ?? 

I DOWNLOAD android-kitkat-images.tgz

WHEN I EXTARCT FILES  . IT HAS 4 IMG FILES AND SOME OTHER FILES 
2NDBOOT.BIN 
BOOTIMG
BOOTLOADER 
CACHE.IMG
ENV.CONF
INFO.CONF
PARTMAP.TXT
SYSTEM.IMG
USERDATA.IMG 

AND win32diskimager ONLY WRITE 1 IMG 

WHAT SHOULD I DO ?

its solved 

i downloded wrong file 

true file is s5p4418-eflasher-sd8g-20170111-full.img.zip