I have an EC20 Mini PCIE with module and revision number below:
I have noticed that no antenna mating plugs are soldered to both GNSS and the diversity antenna.
I have soldered my own u.FL mating plug and connected a GPS antenna. But, when I try AT command AT+QGPSLOC? I get CME ERROR: 516.
My question: does the module support GPS in the first place? And if so, why am I getting this error and whether I should worry about the passive circuit next to the antenna which is also missing for GPS and diversity antennas.