Skip to content
Thoughtful, detailed coverage of everything Apple for 34 years
and the TidBITS Content Network for Apple professionals

iOS 4.3.1 Fixes Activation, Display, and Authentication Bugs

iOS 4.3 had been out for only 16 days, but that was enough time for Apple to identify a number of troublesome bugs and fix them in a quick update to iOS 4.3.1 for all iOS devices compatible with iOS 4.3.

Most notably, and this was undoubtedly the reason for the quick release, iOS 4.3.1 resolves bugs related to activating and connecting to some cellular networks. Given these bugs and the date of iOS 4.3.1’s release, it’s possible that it was scheduled to coincide with the international release of the iPad 2.

In addition, iOS 4.3.1 fixes an occasional graphics glitch on the fourth-generation iPod touch, resolves image flicker when using the Apple Digital AV Adapter with some TVs, and solves a problem with authenticating with some enterprise Web services.

As with iOS 4.3, 4.3.1 is compatible with the iPad and iPad 2, the iPhone 3GS and GSM iPhone 4 (not the Verizon Wireless iPhone 4), and the third- and fourth-generation iPod touch. The update is available only via iTunes; download sizes are in the 500 to 600 MB range, so schedule some time for it if you don’t have a high-speed Internet connection.

Subscribe today so you don’t miss any TidBITS articles!

Every week you’ll get tech tips, in-depth reviews, and insightful news analysis for discerning Apple users. For over 33 years, we’ve published professional, member-supported tech journalism that makes you smarter.

Registration confirmation will be emailed to you.

This site is protected by reCAPTCHA. The Google Privacy Policy and Terms of Service apply.

Comments About iOS 4.3.1 Fixes Activation, Display, and Authentication Bugs