Hi all

I got an answer
Physically the "mmcblk0"  not visible and this is the  NAND EMMC.

The
mmcblk0p1 PARTLABEL="kernel"
mmcblk0p2 LABEL="dreambox-rootfs"
mmcblk0p2 LABEL="dreambox-data"

partitions shall be located here.
No physhical access at disposal, therefore the image can not be written with flush-tarbal
Can be flashed to a memory card however at restart the factory road-map comes back.
Due to HW failure motherboard replacement recommended!!!