I have a AT&T sim card and I want to know what I can do so that it will work in a T-mobile phone. My mother bought a tmoblie shadow and didnt want it any more so she went out and got the blackberry pearl. she said that i could have the shadow however when I put in my sim card the phone says: network is locked. please input unlock code.
is there and where i can get this code and if not is there any t mobile phone that will accept my sim card?
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