I finally can communicate with my dm800 hd but every attempt at flashing a new image fails. When I connect I get this message:

DM800 second stage loader #84 (2011-09-02)

logo

If you see this, your Dreambox didn't boot the Linux kernel. Unless you interrupted the boot process, this usually means that your Dreambox doesn't have a valid operating system installed.

Don't worry! It's not a problem. You can just flash a new version and everything will be fine!

Otherwise, you can boot from network or USB.

If you're about to give up, you might get help at the Dream Multimedia Support board!

You can download the current flash content, but please don't expect to be able to flash it back. It's merely a debugging feature.

Device information
Firmware upgrade

The only thing I see on my screen is a picture of the image, I cannot do anything with it.