Has anyone in Kansas, specifically the cities in the South Central region, been having problems with their iPhone 4S picking up a 3G signal? If so, what do I do to prevent this from happening?
Considering the OP never states what wireless provider they're using (Sprint, AT&T, etc...)... I think a good starting point would be to contact your provider and see if they've been servicing towers in your area.
*228 doesn't work for sprint. Dial ##873283# to update roaming list. Try resetting network connects in settings also. Call sprint and see what's up. I had a tower down closest to me according to sprint and it was reeking havoc on my service. Think it's fixed now as I don't really have issues anymore.