I lost my 3g last night (while sleeping - I think). When I woke this morning it was gone. I had to go into the system settings>mobile network settings>data enabled and turn data enabled on.
Does anyone here know how or why this could have been disabled behind my back? I do use wireless around the house and I am not sure if I was hooked into our router last night before I went to sleep.
Thanks!
Power Saving Mode shuts off your 3G automatically when your battery gets to a certain percentage. This can be disabled or modified in the battery settings. Or like the previous post said you can accidentally turn it off via the notification bar.