Hello
Please make sure that the ignition is on, the data is provided only when the engine is running=> then connect device to Configurator and use section FMS=> check which parameters are available
If there are no parameters frim FMS
Please make sure that vehicle support FMS
Please check your connection
details
https://wiki.teltonika-gps.com/view/How_to_connect_FMB640_with_FMS_Cable
Please use SMS command "tachocheck" and send us the response (while the ignition is on).
What is the firmware version used? Use sms command <login><password>getver
Thank you