I just switched from an iphone 4 to a droid dna. I live in a college dorm that doesn't always have the best service. i have noticed that the 4g always says it has a couple of bars but i cant even refresh my twitter feed or access the internet. After 20 minutes or so of trying to use the almost 4g it then switches to 3g. The 3g connection is much better and i can then access the internet with pretty good speed. I never had any problems with my iphone 4 and I am thinking this is just a problem with the 4g connection in my area. Also, my city, pittsburgh does have 4g. does anyone know how to fix this? or how to always use 3g so I don't have to waste 20 minutes of waiting to get the 3g. any help is appreciated, thanks.