Fellow MVNO iPhoneites, I have an AT&T iPhone 5 which I used Net10 on for the past two months without any problems, I bought it refurb, activated it with the NET10 sim. Now, I switched from Net10 to Airvoice wireless, pop the old sim out, put the new sim in, worked great. Got voice and text right away, however, I can't get 3G / LTE to work at all. I went to unlockit.co.nz applied the Airvoice profile (and AT&T ones as well), still does not work. I reset network settings, turned it off / on again, and still no dice. Does this mean that it won't work? or should i erase everything and activate the phone again with the new SIM? That seems to be an overkill Thanks!