I think I'm in an area with eCSFB enabled because I would make a phone call and then my LTE connection would be restored afterwards. I just tried changing my phone to LTE Only and I couldn't get a signal. I switched it back to "LTE/CDMA auto (PRL)" and now I can't get an LTE connection anymore. I should've remembered what the original setting was but I didn't keep track. Is "LTE/CDMA auto (PRL)" the default setting? I have a LG Nexus 5.