Okay, so I was just wondering why my iPhone 5 is getting worse signal in some areas than before. I know Apple supposedly redesigned the antenna for the 4S, and there weren't many issues with that phone, but this phone seems more sensitive than my 4. If I hold the phone in a totally normal grip I am consistently losing 2-3 bars. Try holding the phone with one hand like you normally do, wait for about 25 seconds (often it'll drop well before then) and then see any change in bars. Then let go and put it on any surface, the bars come back almost immediately. I can't find a way to hold this phone so that I don't lose at least 1 bar.