I saw these instructions in the 4G Problem thread and now I have a question
To set it to the 4g LTE setting, go to settings --->more... (under data usage) ---> mobile networks ---> network mode ---> select LTE/CDMA.
I have had no problems on my Maxx switching between wi-fi/3G/4G. I followed the instructions above to see how mine is set and it's set to "global".
What's the difference between the selections