Good day. Thank you for your question.
May I know if you have tried our OTA platform, i.e. FOTA WEB? Please refer here for more information on how this can be done - https://wiki.teltonika-gps.com/view/FOTA_WEB_Devices
Alternatively, you may also create a group for a specific number of devices and create the configuration update task for that group.https://wiki.teltonika-gps.com/view/FOTA_WEB_Groups
If you do not have the access to FOTA WEB, please reach out to our 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 out 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 in advance.