Good day. Thank you for your question.
We can use the firmware that has been preloaded on FOTA WEB to update our devices instead of uploading it. Please try this on FOTAWEB - Devices > Select the device that requires firmware update (tick the box) > select Create Task (Selected) > select Task Type (Update Firmware) > select/type the Firmware version > Create
For more information on FOTA WEB, please watch this video - https://www.youtube.com/watch?v=SiMwnkEEes4
If you are still receiving the error, kindly raise a query on VIP Helpdesk or contact your Sales Manager. If you don't have any contacts with our Sales managers, please contact them on our official website https://teltonika-iot-group.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 [email protected]
Thank you for your understanding.