Hello again.And i'm sorry to say this but i was wrong at something.We generally installed rk322x boxes with multitool before.Installing way was as 1-erasing flash 2-burning new image after erasing flash.We were successfull at most boxes but some of them was i think(i rechecked the installation guide and some links at forum) including nand chips.After erasing nand boxes we were losing control of internal memory.After trying these commands at below at multitool command line(4. choice) we are able to see nand again.Anyway,thanks for you for all things and being at here.
mount /dev/mmcblk0p1 /mnt
dd if=/mnt/bsp/legacy-uboot.img of=/dev/rknand0 bs=4M seek=1
dd if=/mnt/bsp/trustos.img of=/dev/rknand0 bs=4M seek=2
sync
exit