telnet dm ip addy - hit return
put in password - hit return

mount /boot -o remount,rw - hit reutrn
rm /boot/* - hit return
reboot - hit return

Open up your favorite web browser and type in the IP address of your dreambox. (note your dreambox ip addy might change so check your router page for it) You will see a green page load.

Click the link labeled 'upgrade firmware' (or similar) on the bottom left of the page. Browse to and select your the NFI image file on your PC. Click the button to proceed.

Once the flash progress meter has reached 100%, turn the DB off then on again.

That's it, You have a new image in flash.