Touch ID trick...

[Gix1k]

Been reading that people have been having issues with it reading and unlocking. What I've found is if you take your unlock finger and give a solid push on the home button until you hear the click, while the screen is off, it'll unlock every time, first time.

The times I have issues with it unlocking is if the screen is already on and I just sit my finger on it to scan.

 

[MrGST]

This has been my experience as well.

 

[Arcade]

I mentioned something similar on another thread to someone but I said they need to press firmly on the home button and the phone will unlock.