I have an AT&T Note 9 that is not updating to Android Pie--the phone says my phone has the most recent updates. When I checked my software, I see I have last gotten a security update on October 1, 2018. I called AT&T, and on two occasions, the service tech advised they would push the update to me OTA. I have an Galaxy S7 for work--AT&T--that got a security update on December 1, 2018. Does anybody have any ideas what to do as AT&T advised I may have to go to a Samsung store to get the update. Is it possible there is a setting on the phone that is checked that is blocking updates?