first is the boot.img and maybe useless
second are the first 8 MB to read the table and get the values for start and length
third is the image itself
after that, feed it into wwr mkt
and running cut the rom, trim the zeros and keep userdata (that right bottom button)
now i can see in windows mount in context menue on the img files but that failes.
so now i need to try in linux
leni@DESKTOP-62KDO04:~$ mount /mnt/c/Users/Tarija/Downloads/SP_Flash_Tool_v5.2208_Win/ReadBackAll/assembled/userdata.img /mnt/volla/ -o loop=/home
mount: /mnt/volla/: failed to setup loop device for /mnt/c/Users/Tarija/Downloads/SP_Flash_Tool_v5.2208_Win/ReadBackAll/assembled/userdata.img.
-t ext4 did not help neither