The HTC evo 4G boost mobile phone is a CDMA and GSM 850/900/1800/1900 (Quadband) phone. when you go to setting on the phone like this - "Mobile network" - Preferred Network - Global mood or GSM/UMTS mood, it say "it does not support in the U.S. Only foreign SIM card usable in device" well, the thing is I am going back to my country in December but I want to find out who has already gone to another country and has used in GSM mood without unlocking this device. I have had unlocked a phone 2 years ago and I got software problem and had to throw away that phone. it was a T-mobile.
Anyway. In this discussion, there is one person who has gone to Kuwait and has used this phone. please some one let us know for sure whether they have unlocked or not using this phone in other country.