Hello DS7 friends, since today I have the following problem: got into the car about 1 hour ago and noticed when driving backwards that the return camera does not react. After that several times car off and on again…nix goes. Display is completely frozen. You can’t dial anything, no phone, no radio stations, no settings, NIX. Even the time in the display does not run along. Question: is there a RESET possibility or other experiences and possibilities to fix the problem? B thanks for your help in advance. Manu