Owners of Apple's iPhone 5s either seem to love its Touch ID fingerprint reader or hate it with a passion. For some people (like myself) it works the vast majority of the time, while other people have told me they've given up on using Touch ID to unlock their devices. Over at Macworld, blogger Serenity Caldwell has written up a nice guide on how to troubleshoot issues with Touch ID and keep your frustrations to a minimum.
To start with, Caldwell suggests that you start with a set of good fingerprint scans or if you're having issues, to re-scan your prints. Fi
