A bit off topic. I received my lgt92 this week. It already had the latest firmware 1.6.5. I was able to join it to V3 without any problem.
But the GPS is terrible. My unit is a LGT92-LI-EU868, firmware v1.6.5 EU868, hardware v1.6.5, GPS ublox-MAX7. I have to set FTIME to 5 minutes to get location fixes when I have it in my car or around my neck outdoors. Indoors I never get a location fix. How is your GPS working, and what hardware version do you have?