VZW employees do not know their ass from a hole in the ground...

 

No disrepect, but a lot of us have known about this app for a long time now and there have been threads on the topic. But I'm glad you figured it out and it's working for you.

 

Well the good thing is your post will show up in more google searches on this topic, resulting in less people posting here about how to turn 4G off

 

I found that most knew the app and the *#*#... technique but only the tech people were allowed to talk about it BUT then none seemed to know the upgrade had been pulled

 

No disrespect, but a lot of us just use the built in *#*#4636#*#* function without needing some stinkin app..

 

easier way is to dial ##778# then select edit. Password is 000000. Then select modem. Then rev.A and select enable and 4 g and simultaneous talk and data is disabled.

 

or to answer the op's original question, type this into the phone keypad: *#*#4636#*#* and select: Phone Information>Set Preferred network type>CDMA auto (PRL) and it will still allow you solid 3G (without going from 4G, 3G, 1X) and the ability to use internet capabilities while talking on the phone. When you're in an area you think has 4G simply follow the steps over again, but change it back to: CDMA + LTE/EvDo auto.