I get good signal most of the time when it comes to calls. But I noticed sometimes I have been to places. Where 4GLTE has coverage is 3G or 1x. I don't know if it's the phone or the service. Sometimes when it's displaying 3g or 1x the phone gets hot as well. Trying to Log on to Instagram or FB or any other thing will say has no connection or will keep on trying to connect.