Apple 'stunned' to find flaw in iPhone

NEW YORK (AP) - Apple says it is "stunned" to find that its latest iPhone model uses a "completely wrong" formula to show how many bars of signal strength it's getting.

Apple says that's the reason users have been reporting big drops in signal strength when holding the phone in a way that blocks the antenna at the bottom of the phone.

The company says that drop seems exaggerated because the phone wrongly displays four or five bars of signal strength when it shouldn't.

Apple says it will fix the formula, making the phone report signal strength in line with other AT&T phones.

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