This article originally appeared in TidBITS on 2012-12-18 at 5:01 p.m.
The permanent URL for this article is: http://tidbits.com/article/13472
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iOS 6.0.2 Squashes Unspecified Wi-Fi Bug in iPhone 5 and iPad mini

by Agen G. N. Schmitz

Released with a typically perfunctory description, Apple has pushed out iOS 6.0.2 [1] for the iPhone 5 and iPad mini to fix “a bug that could impact Wi-Fi.” With such a blank slate to divine from, it’s hard to know what problems iOS 6.0.2 might address. However, there’s a lengthy and vitriolic discussion thread [2] (3,155 posts and 485,390 views) at Apple Support Communities that suggests this fix is meant to patch a problem with the iPhone 5 that gives the appearance of a connection to a Wi-Fi network while receiving no data over Wi-Fi. Unfortunately, another long thread (2,587 posts and 371,438 views) detailing Wi-Fi woes seems to point its finger at iOS 6 itself, given that the problem started at its release and occurs on numerous devices other than the iPhone 5 and iPad mini.

If you have workable Wi-Fi connectivity, we recommend going the over-the-air update route (go to Settings > General > Software Update on the device) as this method downloads only the deltas that are much smaller and faster to install (a 51.4 MB download for the iPhone 5 and a 32.9 MB download for the iPad mini). You can also grab the full image of iOS 6.0.2 through iTunes on your Mac (which downloads a heftier 819 MB).

All that said, some people have experienced significant battery drain after updating to iOS 6.0.2 (see “iOS 6.0.2 May Impact Battery Life [3],” 19 December 2012), and while toggling Wi-Fi off and back on may help, it’s worth holding off on iOS 6.0.2 unless you’re experiencing Wi-Fi problems that it might fix.

[1]: http://support.apple.com/kb/DL1621
[2]: https://discussions.apple.com/thread/4322714?start=0&tstart=0
[3]: http://tidbits.com/article/13474