I recieved the OTA update (2.3.20) when it was released. I noticed a problem of when I tried calling somebody out of state, it'd show a red circle with a line going through it next to the battery and i'd lose the 3G icon and lose signal. i tried flashing a SBF file. got bricked. just got unbricked and still same problem. it allows me to call my friend in state but if i try connecting to an out of state call it seems to not work any suggestions?