FMB003 : suddenly stops sending data to server

We are facing very serious issue with FMB003 devices.
There are several FMB003 devices installed in our customer’s vehicles in India. They send data to our server in code8 extended format.

We are seeing the strange issue that, device suddenly stops sending data to server. It even can not receive any SMS commands. After several attempts with “cpureset” SMS command, it wake up and start sending data. However, it works for few days and it again suddenly stops. Device is running latest firmware version 03.27.12.Rev.93

We have checked that, there is no SIM connectivity issue.

Any guidance on this critical issue?

Hi Shri,

Good day, Welcome to the Teltonika Telematics community forum!
Kindly report this issue to your sales manager or create a helpdesk ticket, this issue should be investigated properly. If you don’t have any contact with our Sales managers, please contact them on our official website and click on the “Contact Us” button. When you 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 us: Teltonika - IoT, Internet of Things

Best Regards,
Maynard C.

I get the same problem. FMB003 suddenly stops sending data.
Reson in majority of cases is lost SIM PIN from unit’s configuration.