Hello, Flavio ,
Since trackers of different manufacturers and models work according to different protocols, it is difficult to say for sure whether your tracker corresponds to one of the protocols we support.
Please try to identify your tracker on id.wialon.net as Sinotrack ST-901 or Rilla G-19 device.
If your tracker is determined, take a screenshot, write down the name of the model of the tracker and the identified ID (may coincide with the IMEI, may be part of it with zero or without).
After that, return to the application in the unit settings (unit menu - Settings - Common Settings), specify the determined model and ID. After that, configure the tracker on the defined server and port.
Regarding the server, you can also read more information here https://forum.gps-trace.com/d/586-ip-and-dns-server-formats-in-the-application
It is also important to understand that it is quite difficult for us to understand how to process data from a device if you do not provide a protocol. Also, these devices have a lot of different copies with their own non-standard modifications, which also complicates the recognition of a specific model. If you have this tracker, then it is still the best option to contact the manufacturer or seller of the device so that they provide the protocol to you as a client.