There always seems to be problems with the new features Apple introduces, and even though the company usually manages to get past it, it does cause some amount of buzz before going away. The latest issue appears to be with the Touch ID feature in the iPhone 5s, with many users complaining that the accuracy of the fingerprint sensor reportedly decreases over time.
That means that users have to fiddle with Touch ID just a bit more than usual to get it to unlock the iPhone. The first report of this issue first appeared when “Dr. Drang,” a consulting engineer, wrote on his blog that he was having some issues with his Touch ID feature.
Generally speaking, I like it, and I find it faster than the old swipe-and-passcode method, but I’ve felt compelled to reteach it my fingerprints twice already. I know this sounds impossible, but its recognition of my prints seems to decay with time. I rescanned my fingers this weekend, and Touch ID has been amazingly fast and accurate since then. Just as it was when I first got the 5s, and just as it was a few weeks later when I rescanned my fingers for the first time.
At first, it was believed that this may have been an issue specific to Dr. Drang’s iPhone 5s. However, soon after he posted about the issue on his blog, more users began complaining that their Touch ID accuracy also decreased over time and that they had to rescan in order for it to go back to normal.
I haven’t seen this issue on my iPhone 5s, even though I did have some issues scanning my fingerprint when I first set it up. Touch ID doesn’t pick up the edges of my fingertips but picks up the middle almost instantly, though this may be more of an issue with the way I set it up, and not so much with the degradation of accuracy.