Hi, I have a Sony Xperia XA2 Ultra H4233 64GB phone that I'm using on the Cricket Wireless network. I did a search on google and this forum but couldn't find anything specific to my issue. The Issue Everything works on my phone; talk, text and data. I get 4G LTE data signal. The problem comes after making or receiving calls. Even when I check my voicemail. After the call ends the phone switches to 3G data. At that point I have to go under network settings, toggle the preferred network down and then back up to 4G in order to correct it. Needless to say this is a pain in the @$$. I'm curious if there's either a way to fix this directly through the phone settings or a work around. Or if there's an Android app that will allow me to remedy this issue.