I got a software update yesterday and every since then if im not on wifi my phone says no network connnection. I cant use any my apps or internet and it is super frustrating!!!! U can send messages which is weird. My bars are full but the 4GLTE is grey by the bars ive tried turning my data off and back on ive tried retarating.my phone with wifi off??? Idk what to do but i pay 120 a month for data and i wanna br able to use it when and where i want!!