FMB640 not open in conf

Hello, there is a problem with my teltonika FMB640, when I connect it to the PC, it is found in the configurator, but I cannot open it.


When I try to open it, the icon turns white and back, and so on several times

Hello Alekss,

Good day! I recommend you to try to use a different USB Cable or USB Port and check if the same issue still persists as it could be the cable is unable to transfer the data from the device to your PC.

It is also worth a try to use different Configurator version for FMB640 where you may access through this link: Configurator

Else if the issue persists, we might need to update Firmware/Flash the device. In this case please contact your sales manager. If you don’t have any contacts with our sales managers, please contact them on our official website and click the “Contact Us” button. When you will click, please fill out the form and submit it. Note: as a topic, please choose “Vehicle telematics”. Or you can send an e-mail with a description of your situation to When contacting Us, please provide:

  • IMEI
  • Details of the issue

I hope this helps.

Kind regards,