A
Android Question
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Why i can't get internet service on my brand new i9300 in SouthCarolina with Straight Talk service
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I'd need more information than "it doesn't work" in order to be sure 
But the first thing to check is the Access Point Names settings (APNs) in your mobile data settings. Make sure these are set and correct - you should be able to get them from your provider, probably off their website.
If not, I'd speak to your provider, as it may be that they've not set something up correctly with your account.
But the first thing to check is the Access Point Names settings (APNs) in your mobile data settings. Make sure these are set and correct - you should be able to get them from your provider, probably off their website.
If not, I'd speak to your provider, as it may be that they've not set something up correctly with your account.