Hello there,
Good day. Thank you for the question.
The firmware 03.25.10 Rev:175 is the base firmware but the configurator versions used are the latest version. You will need to use an older version of configurator in order for you to access the device.
However, we would like to inform you that 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
Kind regards.