I've had my Nexus 4 for approximately four to five months. I use family Mobile for my service. I love the phone but I work in a concrete building I work with people that have Verizon and other services they seem to have a better signal than me. I pretty much do not have a signal unless I get close to an outside door. Are there any settings that can be changed to improve this? Do you think the Nexus 4 has a weak antenna compared to other phones such as the Galaxy S 2 ,S 3 or 4. thanks for any help you can give me.