Hi, so I need help switching from my old lg phone to my new Galaxy s2 The issue is that I originally switched back to the LG because my s2 was broken, now that it is fixed I want to go back to it and I am running into trouble online. Hopefully you can help me out. My s2 does have a sim number and the computer says its invalid. when i tried putting the mei number it was not compatible. I dont know. Any help will be really appreciated thanks!