[Q] (KDM) SHV-E120S on American network?

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http://forum.xda-developers.com – Hi guys, I've recently brought my SHV-E120S with me to USA. Currently It can make calls/send txts but it only connects to GPRS(G). I'm on T-Mobile and My phone supports their frequencies.... Is there any way to access at least 3G on this phone? perhaps other carrier? Thanks.. (HowTos)