Install “Mozilla firebird” version 3.x.x
Install driver “CP210x_VCP_Win_XP_S2K3_Vista_7.exe” .
Connect DM box to a pc with a “USB to mini-usb” cable.
Connect DM box to your dhcp lan with a lan cable (same network as your pc).
Run “SUNRAY-FlashUP v1.3.3.7.exe” (Check use network, and click on Connect).
Turn on dreambox, it will go into flashing mode and will show ip on front panel.
Run Firefox V3 and put dm’s ip in address bar.
Go down to version update and select the image file (mine is: “Cnigma2-dm800se-sim201-20121221.nfi”) from your computer and upload, it will take 2-3 min to upload.
Click on reboot, if nothing happens manually switch Off the box, unplug the mini-usb cable and turn on the box.
Smile !