I was in a 4g dead zone. there was 4 g a block away but not at my house. inside or outside . Then I went to turn off WiFi when I was in my driveway .I turn on 4 g by accident .and I had a very weak 4 g signal .today I have a decent 4 g signal inside of my home in a good 1 outside .with wimax going away I'm surprise that I have 4 g .