iOS 4.1 Includes Changes To Fix Incorrect Display Of Signal Strength; New Baseband

News | Monday July 12 2010 7:07 PM | Comments (0) Tags: , , , , , ,

to confirm that they’re incorrectly displaying the signal strength, which will be fixed with a
that will provide users a much better indication of the reception that they are getting in a given area.
Upon investigation, we were stunned to find that the formula we use to calculate how many bars of signal strength to display is totally wrong. Our formula, in many instances, mistakenly displays 2 more bars than it should for a given signal strength. For example, we sometimes display 4 bars when we should be displaying as few as 2 bars. Users observing a drop of several bars when they grip their iPhone in a certain way are most likely in an area with very weak signal strength, but they don’t know it because we are erroneously displaying 4 or 5 bars. Their big drop in bars is because their high bars were never real in the first place.
To fix this, we are 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. We are also making bars 1, 2 and 3 a bit taller so they will be easier to see.
We will issue a free software update within a few weeks that incorporates the corrected formula.
Macrumors has observed that the new signal bars appear slightly taller than the previous ones just as Apple had mentioned, which indicates that Apple has incorporated the corrected formula in iOS 4.1.
iOS 4 also comes with new modem firmware or baseband (updated to 02.07.01 from 01.59.00).
It’s too early to confirm whether the iPhone software update has improved the situation for iPhone 4 users who had reported the reception problem.
ALL JAILBREAKERS AND ESPECIALLY UNLOCKERS SHOULD STAY AWAY FROM iOS4.1 Beta UNTIL FURTHER NOTICE!
Macrumors is reporting thatearly reports indicate no change in the reception loss experienced by some users.
However, people's expectations seem to be misplaced. Here are some key points noted by Apple in the
Upon investigation, we were stunned to find that the formula we use to calculate how many bars of signal strength to display is totally wrong. Our formula, in many instances, mistakenly displays 2 more bars than it should for a given signal strength. For example, we sometimes display 4 bars when we should be displaying as few as 2 bars. Users observing a drop of several bars when they grip their iPhone in a certain way are most likely in an area with very weak signal strength, but they don’t know it because we are erroneously displaying 4 or 5 bars. Their big drop in bars is because their high bars were never real in the first place.
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. We are also making bars 1, 2 and 3 a bit taller so they will be easier to see.
So to summarize Apple 's statement on the issue, if you’ve observed the reception issue then it doesn’t mean Apple will fix the reception issues as Apple can’t fix it as it depends on the your carriers network. The iPhone Software update will ensure that the signal is being reported correctly to give a much better indication of the reception that you’re getting (so that you can blame the carrier for the poor reception instead of Apple ).
gripping almost any mobile phone in certain ways will reduce its reception by 1 or more bars. This is true of iPhone 4, iPhone 3GS, as well as many Droid, Nokia and RIM phones.
So you will still notice a drop in reception when you grip iPhone but it won't be as dramatic as it was observed in iOS 4.0.
We’ll let you know as soon as we’ve any further updates. So stay tuned here at
.

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