We just bought a G7 Power from Amazon. Activated it on existing VZW line and only get 3G. According to VZW it will only ever be 3G. I've spoken to them several times and it's always the same.
It's not a location issue. Did a factory reset and no luck. Also reset network settings without any luck.
VZW says tough luck. Not sure how to solve this other than buying a new phone.