I bought A7670G with attached GPS antenna. I tried several different examples but when call command AT+CGNSSPWR=1 it returns ERROR. I read somewhere that this device has no built in GPS. I tried two examples such GPSShield and GPSBuiltin. If this is the case that the A7670G doesn't have a GPS why the board has GNNS connector and attached GPS antenna??

I bought A7670G with included GPS antenna but have the same errors. What it suppose to work?? What is the reason to advertise that this device supports GPS??