If you are one of the many people who struggle with the reliability of gaining access to your iPhone 5S with the Touch ID fingerprint sensor, you might try this really simple tip. In fact, I would call it a “Duh, Tip” (homage to the iFive for the iPhone podcast).
I know people who have had to re-scan their fingerprints every few weeks because, over time, their phones stop letting them in. I have experimented with a few of my friends who were having trouble, and all showed marked improvement with access success rates after making this very tiny change.
There have been many “technical” fixes to try and help with this issue, but none of them worked for me. This, however, works great. Give it a try if you are looking for this sort of fix. You’ll know if you need it. : )