Dear SzaboLaszlo,
You can also try to chose Xexun device type and enter ID: 12 character ID: 0 + [11 last digits of IMEI]
But after the changing do not forget to change the IP and port in device configuration.
Anyway, please write us to support@gps-trace.com specifying login, unit ID and device type, then we can check your issue and try to help.
Also write a link to this topic in your email request, so that we can understand that this is you.