I brought an iphone 4s from ATT that I got unlocked in USA by a third party. I'm able to connect to the 3G network, however, I can't send/receive data even after using an APN changer (unlockit.co.nz) and/or setting the APN (I needed to do a sim swap to get to that menu). I've tried a different sim from TRUE move, I went to one of their branch offices and it still didn't work. Any advice here?

I hope we get some insight a I was about to have the same thing done to my at&t 4s before my next trip over. My wife I there now and using one of our old 3gs's. I'll ask her if she is getting 3G data in it and get back to here about that at least.

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I hope we get some insight a I was about to have the same thing done to my at&t 4s before my next trip over. My wife I there now and using one of our old 3gs's. I'll ask her if she is getting 3G data in it and get back to here about that at least.

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Yeah, I've read that there were some issues with the 4s in thailand on apple forums. I am wondering if anyone has it working, perhaps even using other carriers like DTAC or AIS.

I guess it's just the fours then yes? Wify said 3GS no problem on 3G network in Bangkok so there ya have it. Hope we hear of a solution or resolution about the 4's soon as I'm goin to hold off on the unlock till then I think and just take our other 3GS with me instead.

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You have tried "Reset Network Settings" right?

Settings -> General -> Reset -> Reset Network Settings

For normal iPhones, that fixes 3G issues most of the time.

You have tried "Reset Network Settings" right?

Settings -> General -> Reset -> Reset Network Settings

For normal iPhones, that fixes 3G issues most of the time.

Yup, that worked, thanks for the advice.