This is from the is there a way to disable 4g? thread that is on page 2 now... The post is from scionxa I have tried it and it is quick and easy, simply open the app. Go into Phone Information, then scroll down to the drop box that says CDMA+LTE/EvDo auto (remember that because that will get you back on 4G). Then simply select CDMA auto (PRL) and exit the app. Your signal might go out for a couple seconds but it will come back with 3G. Simply reverse the process to get 4G back. Have seen a few people wanting to know this, so thought I would make a topic just for it.