FMB920 stuck on firmware 01.03.13 – "Not Supported" in Configurator

Telematics Question
1

Hello everyone,

I’ve recently acquired a second-hand FMB920 tracker for development purposes. After a long struggle with USB drivers on my environment, I finally managed to connect it, but I hit a brick wall.

The issue: The device is running a very old firmware: 01.03.13. Because of this, the latest Teltonika Configurator (and TCT Desktop) identifies the device but shows it as “Not Supported”. I cannot enter any settings menu, I cannot load/save configuration, and I cannot access the update tab to flash it to a newer version.

What I need: Since I bought this device used, I don’t have access to a direct distributor or a VIP Helpdesk account.

  1. Could someone share a legacy version of the Configurator that is compatible with the 01.xx.xx firmware branch?

  2. Or, if possible, could you provide a bridge firmware file (.wfm) and instructions on how to force-flash it from 01.03.13 to a modern 03.xx.xx version?

Device Details:

  • Model: FMB920

  • Current FW: 01.03.13

  • Connection: USB (COM Port is working fine)

I would appreciate any help or links to the firmware errata for this specific old version.

2

Hi,

Good Day,

Please note that the firmware currently installed on your device is old (approximately 9 years old). To upgrade it to the latest version, a step-by-step upgrade process must be followed.

Since such older firmware versions are not available on the public wiki or general release pages, you will need to create a support ticket. Through the support portal, the required intermediate firmware files and the firmware updater application can be provided to you.

This process is necessary to ensure a smooth and successful upgrade to the latest firmware version.

Thanks

Ashutosh S.