I haven't dropped a call yet on my iPhone 4. I've been touching the left hand corner just to see if it happens and it doesn't. Maybe i have a good unit 
I was wondering about it myself, especially after reading reports that this actually worked for them.Ha ha. This is why I haven't called in. I don't wanna deal with mindless bogus troubleshooting requests like this...
Interesting... I experienced the problem at my home, but now that I'm at work it all seems fine. Holding it in my hand and the bars aren't dropping here...
At home, it's exactly as others have described. While the phone is resting on the table I have 4 bars... pick it up and the bars slowly drop down to 1. Not good.
I haven't dropped a call yet on my iPhone 4. I've been touching the left hand corner just to see if it happens and it doesn't. Maybe i have a good unit![]()
But they may have all used cases to disguise the phone they were using, which would have masked the issue.
I'll take it a step further, it happens to my WiFi signal as well when I hold the phone in landscape mode. It's very sporadic on my phone, as I type this both 3G and WiFi have fluxed a couple bars in both directions.
But they may have all used cases to disguise the phone they were using, which would have masked the issue.
But they may have all used cases to disguise the phone they were using, which would have masked the issue.
This brings hope. Seems like something wacky with the way that the iPhone is currently trying to find the best signal.
I posted this issue on the Apple Community board, but it was removed.
Mine doesn't have this problem.
I think one of the posters over at Apple's forums summed it up nicely:
"For all these Apple defenders, we'll never be able to convince them Apple may have made a design flaw. They'd rather believe God made a design flaw in our hands that is blocking the signal to their perfectly designed Apple product and demand a redesign of our hands..."
http://discussions.apple.com/thread.jspa?threadID=2475309&start=45&tstart=0
This is an interesting point.
Until now i believed it was hardware. HOWEVER, it could just be the iPhone Software not dealing with a signal quality change properly. This is the first compelling argument i've seen which suggests that there may not 100% be a need for a recall.
Just to repeat, I was able to produce the problem without the bumper, but with the bumper on, I could not. FWIW I really like the bumper. I've never had a 'case' where the buttons work so well. It's almost like it's part of the phone. I'll probably get some additional protection (skins) for the front and back, but other than that, I think it was worth the money.