I just brought my brand new iPhone 6 home, connected to the home wifi and matched all my settings to my old iPhone 4. At this point I'm completely satisfied, I plugged it in before going to bed and was greeted with "an update is available" to I started the update and went to bed. In the morning, I received a text from Verizon stating that I had gone over my data. . . in one day. . . at home. . . so the question is when the 6 is asleep does it switch from wifi to cellular data? If it does how to I stop it? PS: I didn't have LTE enabled since I don't know what that is yet, I have now switched off everything for "use cellular data" in settings. Is this a Verizon issue? Thanks for any help!