Searching... for carrier even though it's unlocked
Hi all. I have a 3GS old bootrom. It was locked to a previous carrier, so I wanted to unlock it. I used SnowBreeze to jailbreak it first (untethered). It didn't seem to do the whole job or something (to install Cydia), so then I used Redsnow. Finally, once I got into Cydia, I installed Ultrasnow to unlock it. Only problem now is obviously I can't seem to connect to my carrier (Koodo). It constantly says "Searching..." and hangs there. However, when I choose Settings > General > About, my carrier is listed there. Just not when I choose Settings > Carrier ("Automatic" is on). The Sim is brand new, also, and the store tried a sim of their own in my phone, which also didn't work. I'm almost ready to get rid of this phone, this process has been a lengthy and frustrating one, but if someone can solve this problem, I will be very grateful.
Also, WiFi works fine.