updated 10:24 am EST, Fri February 28, 2014
Will reportedly solve 'fade' glitch
Apple is at work on a software update that will fix a "fade" glitch with the iPhone 5s' Touch ID sensor, a source says. The company has reportedly been working with the original AuthenTec team -- which was absorbed into Apple in 2012 -- to smooth out iOS' recognition software. The problem is that while Touch ID appears to be extremely reliable for the first few months after setup, some users have subsequently encountered intermittent failures.
The fade may be temporarily dealt with by reconfiguring Touch ID, but this only lasts for several weeks. Some users have recommended having the same finger stand in for several different digits during setup, which while potentially inconvenient, might theoretically make accurate reads more likely.
The source suggests that the update is coming relatively soon, but it's unknown if it will make it into iOS 7.1, which is expected around mid-March. Except for some enterprise-oriented changes, v7.1 is primarily focused on cleaning up iOS 7's underlying code and making some cosmetic tweaks.