yes i have , i am on att tho. im curious does yours have a update alert on it also? mine does and everytime i check for the update it says " system up to date" yet the alert remains.....anyhow yes i have to constantly do this. stupdlid phone companies are too focused on cameras or screen or this or that to pay any attention to the way it handles the network or signal...i mean come on you can have the best phone and if your signal sucks your atill habing a crappy time....i have to airplane mode mine almost 3 times a day so it doesnt fluxuate like it does...for a little bit anyhow....very frusterating