I recently bought a Mantis Q from Affer. My assumption is it is a refurbished model that came even with the transport bag. I found that my Pixel phone would not support live video from the Q. I then bought an AT&T phone which has worked well with Mantis. My question is about the geo map function. Does any one know if the phone has to have a cellular connection to provide the full functions such as the map display. I have Verizon and have set up a Hotspot with my Pixel to the AT&T phone, but still no success. This is not my first drone or RC plane. I also fly the Typhoon H.