Hello Cedric,
Good day. Thank you for the question.
It appears that you will need to update the firmware manually using the latest configurator however, we do not share firmware files/updater and other files in the community forum. To receive firmware files, updater and documentation on devices, please contact your sales manager.
If you don't have any contacts with our Sales managers, please contact with 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 description of your situation to info@teltonika.lt
Thank you for contacting us.
Kind regards.