Apple has released iOS 6.0.1 with fixes for a grab bag of connectivity bugs. While no single fix in the list seems to take aim at correcting the unexplained hoovering of data through cellular networks (for more on this, see Matt Neuburg’s “Mysterious iOS 6 Cellular Data Usage: A Deeper Look,” 24 October 2012), perhaps this collective group of fixes will help to mitigate the problem.
Connectivity issues addressed include improved reliability when connecting to encrypted WPA2 Wi-Fi networks using the iPhone 5 and fifth-generation iPod touch, the addition of a consolidated Use Cellular Data switch for iTunes Match, and resolution for an issue that prevented the iPhone from accessing a cellular network. On Adam Engst’s iPhone 5, however, Wi-Fi (which had been working fine under iOS 6.0) failed to work at all under 6.0.1 until the device was powered down and rebooted.
The update also fixes a problem where horizontal lines could be displayed across the keyboard, a bug affecting Exchange meetings, a bug that prevented the camera flash from operating, and a Passcode Lock bug that could allow Passbook pass details to be viewed from the lock screen. A couple of WebKit security vulnerabilities were also closed. It does not fix a bug that causes previously played audio (such as an iTunes U lecture) to start playing again unexpectedly after iOS uses other audio (such as playing an alarm sound).
iOS 6.0.1 is compatible with the following models: iPhone 5, iPhone 4S, iPhone 4, iPhone 3GS, third-generation iPad, iPad 2, fifth-generation iPod touch, and fourth-generation iPod touch. We presume the iPad mini and fourth-generation iPad will either ship with iOS 6.0.1, or will update to it immediately.
You can download the 43.3 MB update either via iTunes on a computer or via an over-the-air update on compatible iOS devices — initiate the update in Settings > General > Software Update. However, iPhone 5 owners looking to update wirelessly will first need to download another app called Updater for iPhone 5 before downloading iOS 6.0.1, since the iPhone 5 is unable to install software updates over the air under iOS 6.0. This app, which shows up as iOS Updater on the Home screen, disappears once 6.0.1 is installed.