OK, please forgive me but I am still not 100% on this. If I install this zip (or LTE OnOff) I can then turn 4g off completely right? Right now I am not in a 4g area so if I do this say in New York City my phone would run there like it does right now where it is only doing 3g right? I know that I would not be able to surf and talk at the same time so that isn't really that big of a deal for me. I just want to make sure that I would still be able to make/ place calls, or surf the web.