Hey guys I have brought my new LG Optimus M in last month. Even though I am in good coverage area, sometimes there is only one bar or less than that in my phone. I have noticed that whenever I go up on the roof it I get a 3 bar, but when I am on the ground I only get one bar, sometimes if I go up in the hilly areas I get 2 bars. So I want to get the 3 bar signal inside my house also. Is there a way that I can boost the signal strength?