Erica Sadun, iPhone notes programmer, has created a simple application that can measure the intensity variation of the audio signal on the iPhone 4.
Sadun has created a video of this application, demonstrating the effect of “hand” at the bottom left to go directly affect signal strength, so it is impossible to correct the shot with a possible firmware update.
It therefore appears that the problem is hardware, and that Apple should find a different solution for all users dissatisfied.
Tweet
Support Jailbreak Greenpoison Absinthe for Iphone 4S / Ipad 2 UnTethered on iOS 5.0 / 5.0.1 On Google and Facebook
You can follow Mohamed Sabry on Twitter, join our Facebook fanpage and add me on Google+ to keep yourself updated on the latest jailbreak and unlock news.


