Hey everyone, I'm having a problem with my internet connection on my SGS. It used to lock to T-m*bile, I unlocked it lastweek then use L*bara instead cause got free internet service hehe. somehow, everytime i try to use internet service it says unable to connect to internet/ network unavailable. but I tried the simcard with another phone and its working. some friends suggest me to re-unlock it. but i donno how to re-unlock it Please Help me to fix it.. thanks b4 Regards.