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Windows Central Question
I bought the AT&T Lumia 635 in January and it had a somewhat decent connection where I live (not quite in the city), I was able to use it in my home/room and could share the mobile data to my laptop as well. A few days ago, I bought the AT&T Lumia 830 and it doesn't have any signal in most of my home, or at all in my room. What could cause this?