hello thinking of buy a new cell from a friend that no longer has T-Mobile it`s new LG Sentio
i have AT&T now .
So the question is I read adds on the web about unlock your phone $2.99 some for $4.99
do they work don`t mine buying the phone if i can get this unlocked for AT&T.
So how do u get one unlocked ? thanks for any help


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