| Unlocked phone problems HELP
i bout a lg shine to replace my old razor and when i put in the sim where i live it said no network so i waited a few days and went to an ATT store in a bigger city which has 3g they did something on the computer and it started working and worked fine until i got back to where i live where i used to have really good service on my razor but just not 3g and it started saying no network again ive called tech support 3 times and everyone says give up the phone is bad but how is that if it worked perfect in the bigger city? can anyone help? | 
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