I'm in Denver where they've recently turned on CA--I signed up to try sprint last night and got an S6, but am getting pretty lousy perfomance. My home and work are in two "best" areas for spark and I get a very weak b25/26 signal. I did see b41 for a short period of time while commuting--also said CA not configured on the #*0011# screen. I checked the #data# and it says CA is enabled. I have the latest S6 update, have updated the profile and prl. Anything else I should try?