I have a Samsung Showcase for nTelos that I rooted. I accidentally put a US Cellular rom on the phone, and then tried to put the old rom back. Everything activated just fine, except, the 3g will no longer work. I called tech support and they said the internal s/n did not match the hardware. So, along the lines they said they couldn't help me further. Can anyone help me out with this problem? Please, and thank you!