Internet not working on Korean version of Samsung Galaxy S3 (SHV-E210K)

@anuj19 

Did you post in the internet forums by accident instead of the wireless forums? Are you talking about your Wi-Fi or cellular connection? I'm assuming cellular. I'm assuming that the Korean version of the phone that you purchased does not support a lot of the cellular network bands that are in the US which is leading to problems.

have changed your apn to ATT?

Some older Android Smartphones may use the wap.cingular APN as the default AT&T setting. This APN no longer supports Smartphone data connectivity and you will need to program the new settings. If you are unable to program your device following the steps below, refer to your user manual or contact the manufacturer for assistance.

1. Access the Settings menu.
2. Locate and select Wireless & Networks or More Networks.
3. Select Mobile Networks.
4. Select Access Point Names.
5. Locate and select the option to add a new APN. This is usually accessed by a + symbol on the screen or by tapping the menu button.
6. Program each field using the settings below.
7. Save the changes to return to the APNs menu and select the new APN.

Thanks for your responses.

@ Darknessrise: Yes, I meant cellular. How should I confirm if this is the issue of band? Is there any solution to this issue?

@ GLIMMERMAN76: Yes, I have changed my APN to ATT Phone. Still, the cellular data is not working. 😞

Please help as it is creating a lot of problem for me.

Thanks

@anuj19 

well there is not much else you can do.  The phone is suppose to work with att gsm and hspa according to the specs.  If you getting slow data that means your on gprs or edge.  You could take it to a att store and ask for help.  

Are you on a prepaid account or a post pay account?