[Nordwest]Fritz flash geht nicht

Hi ich habe noch eine Fritz Box 7412 da. Das Flashen schlägt leider fehl

IP-Address: 192.168.178.2 Subnet: 255.255.255.0 Gateway: 192.168.178.1 DNS Servers: Leave blank

Once you're done, press enter, disconnect power from your AVM device and reconnect the power-supply.

Trying to autodiscover! Abort via Ctrl-c. FritzBox found at 192.168.178.1

Autodiscovery succesful! -> Device detected at 192.168.178.1.

Starting automatic image-selection! -> Establishing connection to device! --> Try 1 of 10

Automatic image-selection unsuccessful! -> Unknown Model 209! Press any key to exit.

Hat jemand eine Idee?

Gruß Dominik