Good day. Thank you for your question.
The latest FW version is 03.25.18 Rev.05 for this device (https://wiki.teltonika-gps.com/view/FMB204_firmware_errata).To
receive the latest firmware for FMB204, you may either raise a query on VIP Helpdesk or contact your Sales Manager/Distributor. If you don't have any contacts with our Sales managers, please contact them on our official website https://teltonika-gps.com/
and click on the "Contact Us" button. When you will click, please fill the form and submit it.
Note: as a topic, please choose "Vehicle telematics" or you can send an e-mail with the description of your situation to firstname.lastname@example.org
Thank you for your understanding.