samsung GalaxyS 3 china bought in 2012
Now my question is it takes 2 sin cards for that model,its like a 3rd.world phone used in asia and some of the neighboring countrys that run 2g. now it runs from 900 GSM to 1900 gsm so can i use it here ,does it need to be unlocked.It has never been activated so it never gives a name of the service company that you may have to use,so those arethe same periemeters that straight talk uses at walmart,and maybe ,t-mobile also,so can this be used in the states and do i need i sim card are 2 sim cards.
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