Check out this “magic trick” that involves an iPhone 4 and the signal from AT&T's cellular network. The hand is much faster than telecom:
(youtube) http://www.youtube/watch?v=-ixIHyEPO5g (/ youtube)
Apparently, a wet hand is the best way to ground the antenna of a wireless communication device. This being the case, how are iPhones 4 users going to do to maintain the quality of calls or browse via Wi-Fi? There are those who bet that the secret is not to make a connection between the upper and lower portions of the metal structure, which can lead people to hold the iPhone 4 in unusual ways.
Perhaps putting an external steel structure to serve as an antenna was not a very good idea to sell a $ 30 accessory that makes the antenna “internal”, on the other hand, it could have been quite a move.
Okay, it looks like someone has already managed to reproduce this phenomenon on an iPhone 3G with iOS 4:
(youtube) http://www.youtube/watch?v=84Lpt2YkF3Q (/ youtube)
Now the question remains: is this a problem with the iPhone 4 antennas or the way that iOS 4 deals with the interference caused by the tissues of a hand? Will a software update be enough to solve this?
readers who own iPhones 3G (S) updated to iOS 4, we invite you to: do the test yourself and hold your iPhone as on the video. If the signal indicator bars disappear one by one, leave a comment here and another on the Apple contact page (remember to use the option "Bug Report")! Apple has already given an official response to this case: “It's not a problem. Avoid holding it like that. ”
(via Boy Genius Report)