Apparently, the death grip was not the culprit behind the poor network reception of the Apple iPhone 4. Apple has written an official letter to all the iPhone 4 owners with regard to the poor signal strength. The letter says that Upon investigationthe engineers at Apple found that the formulaused to calculate the network strength was wrong.
In many circumstances, the wrong formula, used to display 2 more bars of signal than the actual network strength. To fix this issue, Apple is going to adopt AT&T’s network strength calculation formula. Along with this, Apple is also going to make the network bar 1, 2 and 3 taller so that users can easily see them. Apple is going to release a free software update to fix this issue.
The software update will be available within a few weeks and will use the new network signal formula. This software update will also be compatible with the iPhone 3GS, and the iPhone 3G. Reader’s can read the full letter from Apple here.