0
It is very easy to flash any image you want, immportant think chooes right image with bootloader for your box...so you box 800se and your sim is ferrari sim, here nothing for ferrari image you can google it under "Dreambox Made in China OEM" to find ferrari site and you can get ready image for your box.
and here tutorials how to flash image
Good Luck
and here tutorials how to flash image
Good Luck