Apple just published a letter regarding the iPhone 4.
In it Apple acknowledges the issue of signal dropping on the iPhone 4 when held. Apple has discovered the cause of this dramatic drop in bars, and it is both simple and surprising.
Upon investigation, Apple found out that the formula used to calculate how many bars of signal strength to display is totally wrong.
Apple's formula, in many instances, mistakenly displays 2 more bars than it should for a given signal strength.
To fix this, Apple is adopting AT&T's recently recommended formula for calculating how many bars to display for a given signal strength. The real signal strength remains the same, but the iPhone’s bars will report it far more accurately, providing users a much better indication of the reception they will get in a given area. Apple also will be making bars 1, 2 and 3 a bit taller so they will be easier to see.
Apple will issue a free iOS 4 software update within a few weeks that incorporates the corrected formula. Since this mistake has been present since the original iPhone, this software update will also be available for the iPhone 3GS and iPhone 3G.
Let's see how this iOS 4.01 or iOS 4.1 update will play out. Let's hope you still get a signal at all in your house.
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