I have a Thunderbolt and trying to figure out if its just VZW or its the actual phone. For those of you with the charge, is 4G always on? Meaning, when it has 4G, does it always work? For me, it will show that I am connected to 4G but when I try to browse, download, facebook, ect, it won't do anything. The up arrow goes but nothing down and it usually requires me to wait several minutes or restart the phone for the net to come back up.