I've read through this thread but perhaps I missed the answer to a question I have. I understand that the bars displayed represent 1x strength, not 3G or 4G. However, when my Optimus G picks up a 4G signal when I am at home (the only place where I can currently get a 4G signal), the signal meter shows 0 bars. If I tell the phone to use 3G only, I get 4 bars. I am not doubting that the bars reflect 1X but why do they switch between 0 and 4 bars when going between 4G and 3G?