I just purchased a BB 6230 (unlocked). I use cingular service. In the town it was shipped too (a smaller town) I used it fine for 2 days after putting my sim card in. After going back to Oklahoma City where I live, it cannot find the network to connect to. I know there is a network, because I used it with my old motorolla phone for 2 years. I took the BB into 2 cingular stores and even tried the online tech help of cingular, but none of them will help me at all because it is an unlocked phone. Does anyone have any suggestions on what I can do? To clarify a little: When I got to the city it says "searching for network." I went into the network option under the settings or whatever and it says different things at different times. Sometimes it says "cingular" and sometimes it says "none." Regardless of that though, it always says "searching for network." Your help will be greatly appreciated. Thank you!
JG

Is Cingular in Oklahoma City 850Mhz only? I ask because the 6230 is only a tri-band (900/1800/1900) device and Cingular operates on 850 in a lot of markets it seems.

Sorry Cingular won't help. The subsidy lock has nothing to do with most problems yet carriers will use it in an instant to deny assistance.

I'm glad you asked that, because I hadn't thought of it. I just called one of the local cingular stores and the lady I talked to said that the Oklahoma City towers operate at the 1,800Mhz frequency. So that's kinda weird!

Now it's things like this why I am switching from cingular to anyone else:
I called 3 different stores and EACH one gave me a different answer as to what frequency was used in Oklahoma City. One told me 1800. Another 850/1900, and the last told me 850. I'm sure that last one was correct because she actually sounded confident and my phone doesn't work. So that would explain it .