I fly commercial real estate jobs, so I have to have a 107 cert. I have done several jobs inside Class C airspace using Airmap to get LAANC authorization. I usually get an email approval fairly quickly, the last one only took 5 minutes. DJI Go 4 (Phantom 4) and DJI Go (Inspire 1) on my iPad are updated with the latest PreciseFlight database updates (geofencing). My house is about a mile from the runway at this Class C airport, a no fly zone, and DJI Go/Go 4 won't even let me start the motors, it says "no takeoff". When I'm flying with LAANC approval in controlled airspace, DJI Go/Go 4 pops up a box asking me to acknowlegde I'm flying in controlled airspace and will take responsibility. I have to click "Yes" in order to fly. I noticed there is a way to enter an unlock code, but I have never been asked to do that. I don't have my iPad connected to WiFi or cell connection, so it's the drone GPS position and the geofencing database that is tripping the warning. A footnote, the last LAANC approval restricted me to 100 ft. I'm here to tell you that is not much altitude to do anything, with trees reaching up to 60-80 ft above the ground, and a cell tower about 1/4 mile away at 100 ft.