I a sprint S5 working on consumer cellular network (AT&T/T). I can not get a network signal in my home so I am trying to get wifi calling to work. I get a 'network connection error'. I definitely have a wifi connection because I can access the web, download apps etc.
I have AT&T firmware but it will not load. So I think I have to change the CSC and/or Model Name.
Any comments or help would be appreciated, Thanks.