I am using EC200U-CN development module. I installed the drivers and QNavigator . But when I try to access the GNSS, it is showing no ports available. I also looked the device manager, there

IoT Modules GSM Module
,
5

OK.
That is the NMEA port.
You should send the AT command
AT+QGPSPOWER=1
If you still cannot see the location from the nmea log, please check the GPS antenna.