I am getting four bars, and the 3G works fine. I can browse the web, etc. When I try to place a call, it brings me to the dialing screen, and right when it would normally start ringing, it just hangs up. What could possibly cause this??--------------------------EDIT: I tried nandroiding back to the stock 2.2 rom, updating PRL and profile. I flashed the newest radio. It's offering me an OTA update to 6.29.651.5, I think. Should I take this? Will it unroot my phone? I really need to be able to make calls, I'm trying everything to get this working.