Touch ID option not available.
I got a 5s that I replaced a screen on, it was damaged when I bought it.
Either way I replaced such parts (I do repairs on the side for fun) and the touch ID option doesn't work.
Luckily I came across another 5s that I swapped over the glass to see if it was just my replacement button (I ripped it by accident) and the option doesn't come up. I've updated. Reset all settings and erase all content and settings. I can't find where the settings are.
Is this a good question?