Hello, DimoNET .
Please write us to support@gps-trace.com we need to check this issue additionally.
We are well acquainted with this manufacturer and will be able to solve this problem. Most likely the syntax of the command is incorrect.
We also recommend that you first contact the manufacturer with this question, they will most likely help you quickly. They are very familiar with our application and the integration of their devices took place with their full participation.
Thank you for contacting, we will wait for a letter from you, but once again we advise you to write to the manufacturer, so most likely the problem will be solved faster.