Recently, I installed a portable WiFi 4G router in in my S model to get faster updates to map data. I have noticed that in couple of hours, the 50Gb data limit was consumed. I made sure all my sharing of data is switched off. There was not software update going on at any time also I made sure that the maps are not being displayed in real time., just the data kept on being consumed at a very high rate. What could be the problem?