Apple Releases iOS 4.0.1 with Cell Signal Patch

Apple released iOS 4.0.1 for the iPhone and iPod touch on Thursday with the promised signal strength bar patch. The update includes a new signal bar algorithm that Apple claims is more accurate along with redesigned bar graphics intended to make it easier for users to see.

Apple previously said the formula is uses to calculate cell signal strength is inaccurate and shows artificially high signal strength on the iPhone 3G, 3GS and 4. In an open letter, the company promised a fix was on the way.

The update is available via Apple’s iTunes application on the Mac and Windows, and is available for free.