A developer known by the name Dr. Dang made some observation on this issue:
“I’ve been using Touch ID since I got an iPhone 5s in mid-October. 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. Just before each rescan, though, I was so frustrated with Touch ID I felt like throwing the phone across the room.â€
He also says that he has limited knowledge about the functioning of touch ID, so he can’t exactly pin point the issue, but notes that decay might be a problem if the internal print image gets updated by the software on a scan each time.
Please note that using wet fingers or using the touch ID right after eating something might lead to initial problems, but can work smoothly after you clean up.
Are you facing any issues with the touch ID? Feel free to leave thoughts in the comments section below.
