The jacks cannot be operated by pushing one of the buttons or the control panel cannot be switched on.
> The console unit has frozen.
|Step 1:||Open the flap right of the entry door.|
On the roof of the flap you can find a nine-contact connector. Pull it out and wait for several seconds. Put it back in, in order to restart the system. You should be able to hear an acoustic signal.
You can switch the E&P operating panel back on as usual.