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This only happens for me when I cup the phone in my left hand. I would never do that normally and never hold it like that.

Not an issue for me.
 
These experiments must have been what it was like for Edison, but with more whinging and less science ;)
 
We won't have a definitive answer on the problem until more people get their phones. I know tomorrow after I get done playing with all the new features, I'm going to test out a few things to even see if my phone is affected.
 
im not saying that everyone has the problem, im just saying that the problem could be a hardware issue and also not show up on all the devices, sounds odd, but true, there are more factors than just holding it

signal strength of all the towers in your area, proximity to a tower, im sure all of those factors matter. this could be a very big problem if it noticeably affects even just 10% of iphone 4 users, i was on the phone with a friend who has one early and he was cutting in and out the entire time.

Yeah, but I find the video of the guy replicating the issue, exactly, on a 3G running iOS4 very intriguing.
 
I am convinced this is some sort of grounding issue. I get the symptoms when holding the iphone 4 bare handed.

The bars return when I hold the iphone 4 wrapped in a cloth that keeps my hands off the metal rim.

This is a grounding issue and I will have to admit, bad design. I hope the invisible skin I bought for it will serve to keep my hands off the bare metal.

So how about bridging the gaps with some conductive metal and seeing what happens? IF it is a conduction and grounding issue, our hands aren't the best way to test it as skin resistivity will play a huuuuuge part in the results.
 
This whole thing is inconclusive. Disorganized troubleshooting by drive by forum members doesn't help solve the issue, especially when JB'd phones are involved.

To actually start an organized troubleshooting process, can someone who is experiencing the issue with an iPhone4 that is not jailbroken post a video of their hot girlfriend in a bikini demonstrating the issue? Until then, all your evidence is irrelevant.

:p
 
Terrible reception

I've had an iPhone, 3G, and 3GS and now the iPhone 4. The iPhone 4 is, by FAR the worst reception I have ever had on any of these phones. I have dropped ALL of my calls today and everyone is complaining about how choppy I am coming through. This has NEVER occurred with this kind of frequency before. Typically I dropped 1 out of every 6 or 7 calls on the 3GS (which is STILL bad!) and now I drop every call? And I live in a major city too - not some off the grid location.


I'm actually a little shocked that in everything apple thought to improve with the iPhone 4 that actually making a better phone never occurred to them.


Horrible.

Unless this is fixed in a week I will be returning this. It's a lemon.
 
This whole thing is inconclusive. Disorganized troubleshooting by drive by forum members doesn't help solve the issue, especially when JB'd phones are involved.

To actually start an organized troubleshooting process, can someone who is experiencing the issue with an iPhone4 that is not jailbroken post a video of their hot girlfriend in a bikini demonstrating the issue? Until then, all your evidence is irrelevant.

:p

/thread
 
thanks

another one not reading all the posts and also obviously not owning an iphone 4.
ther are a few posts here like mine where i state i can not make or receive calls,, however if i go down the road a mile or 2 i can make it receive by laying it on my car hood,
but if i pickit up it drops the call..
oh forgot to add as i said in other posts here and others also have,, the old 3G works great no matter what i do to cover it

thanks for the warm kudos, I know you're upset at the moment, I can tell, we ALL can tell.

Forgive me for indeed, not really ALL 548 posts prior to this winner.
 
So how about bridging the gaps with some conductive metal and seeing what happens? IF it is a conduction and grounding issue, our hands aren't the best way to test it as skin resistivity will play a huuuuuge part in the results.

This might cause unexplained issues, which does include signal fluctuation. Copper anyone?
 
These experiments must have been what it was like for Edison, but with more whinging and less science ;)

and nobody banging him over the head!

Had we had internet forums, back in the early days - we'd be NOWHERE!

Think about it, had we HAD forums like this there would most likely be NOT internet.

(before anyone starts, of COURSE I am generalizing and over dramatizing)
 
Wow, what a let down. I was so excited to turn on my phone and see no yellow spots. Then tried to make a call from my house where my 3GS worked flawlessly for the past year. Dropped. I can replicate this exactly as the guy is talking through it in the video. My wife's 3GS is right next to me with iOS4, and has none of these problems. :(
 
I have the 3g microcell from at&t and I cannot get this to happen in my apartment. As soon as I'm done syncing I'll go for a walk and try outside. I would cancel the sync and test, but i just don't want to :D
 
I am convinced this is some sort of grounding issue. I get the symptoms when holding the iphone 4 bare handed.

The bars return when I hold the iphone 4 wrapped in a cloth that keeps my hands off the metal rim.

This is a grounding issue and I will have to admit, bad design. I hope the invisible skin I bought for it will serve to keep my hands off the bare metal.
The people testing it WERE using cases to hide that they had a prototype. Makes ya think, eh?
 
then i have a question, if its a software issue how does it know when ur holding the phone?

I'm not a software guy, but it could just be a matter of interpreting signal noise/strength not as intended.

But to be honest, I have no earthly idea.
 
/shrug

I don't understand the people that immediately rush to dismiss

I'm only reporting what I am seeing. I have a factory iphone 4 (not jailbroken). It's less than 5 hours out of the box and hasn't left my house. When I hold it normally to make a call, the bars go away. When I set it on the desk they come back. When I hold it wrapped in a cloth the bars remain and do not go away.

Something is wrong.
 
Call quality drops when touching this area

Just got a call and repositioned my hand to cover the suspect area. Within 10 seconds my friend could not hear me...moved my hand and call quality returned.
 
then i have a question, if its a software issue how does it know when ur holding the phone?

No-one is saying that it's JUST a software issue. It's how the software deals with fluctuating signals. If the threshold was set too low, for example, the phone might try to search for a stronger signal, or something might be wrong with the way that it connects. Clearly the issue is to do with how the iPhone picks up and interprets the signal, but that doesn't conclusively mean that its either just yet.

Some people say that they can do it on a 3GS - most probably a software issue
or
Some people say they definitely can't do it on a 3GS - points to hardware
 
I think someone posted that they replicated the issue on an iP4 right out of the box.

I don't think Jailbreaking is the issue. Are the iP4's even JB'd yet?

Not sure, but if this happened with 3G's out of the box, we would have heard about it 2 years ago. That 3G was upgraded to IOS4 and JB'd, which uses a different JB than the 3.x revs. Just saying...

iPhone4 is supposed to not necessarily use the strongest signal, but use the better signal for call quality - the less congested signal available. I assume this is part of iOS4 and perhaps that is why the 3G is now displaying the same symptoms as the iPhone4.
 
I've got the same deal. Bumper arrives from FedEx tomorrow. I wonder if it will help. This is ********.
 
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