HL7812 GNSS Not Working – GNSSSTART Resets, CME Errors, FIX NOT AVAILABLE

I have some Doubt / Question

  • Is GNSS disabled or restricted when CS (2G/3G) services are enabled on the HL78xx?
  • Is it mandatory to disable CS (2G/3G) for GNSS to work correctly?
  • What is the correct configuration or AT command sequence to allow GNSS operation when CS is enabled?