just updated to 6.1 now I cannot text unless I'm at home. Doesn't use its 3g
last night i updated my iphone 4 to 6.1. This morning, while not at home, no texts would deliver. As soon as I got home and it automatically connected to my home network, the unsent texts were delievered. How can I fix this? I can't have a phone that doesn't text using its own 3g or whatever it is.
iPhone 4, iOS 6.1