My Lexus CT200h Advance model is of 2014 and has the same software / firmware i.e LE.31.92
By the way, does your car has "Connected Services" for the navigation? I have normal navigation (not the premium one). The "Connected Services" is supposedly used to interact with your online Lexus customer portal and can transfer POI's etc wirelessly to the car.
Anybody, please provide your assistance - where can i find the "Connected Services" option, I tired every single menu but not success yet.